Table of muscles of the human body
This is a table of muscles of the human anatomy. There are approximately 640 skeletal muscles within the typical human. However, the exact number is difficult to define because different sources group muscles differently. Examples range from 640 to 850[1] This table includes approximately 320 muscles.
The action refers to the action of each muscle from the standard anatomical position. In other positions, other actions may be performed.
Additional recommended knowledge
Muscle | Origin | Insertion | Artery | Nerve | Action | Antagonist
|
occipitofrontalis | 2 occipital bellies and 2 frontal bellies. | galea aponeurotica | | facial nerve | raises the eyebrows |
|
Muscle | Origin | Insertion | Artery | Nerve | Action | Antagonist
|
orbicularis oculi | frontal bone; medial palpebral ligament; lacrimal bone | lateral palpebral raphe | ophthalmic, zygomatico-orbital, angular] | zygomatic branch of facial | closes eyelids | levator palpebrae superioris
|
corrugator supercilii | superciliary arches | forehead skin, near eyebrow | | facial nerve | wrinkles forehead |
|
depressor supercilii | Medial orbital rim | Medial aspect of bony orbit | | facial nerve | Depression of eyebrow |
|
Rectus:
Oblique:
Muscle | Origin | Insertion | Artery | Nerve | Action | Antagonist
|
superior | annulus of Zinn at the orbital apex, medial to optic canal | Outer posterior quadrant of the eyeball | lateral muscular branch of the ophthalmic artery | trochlear nerve | primary: intorsion. secondary:abduct (laterally rotate) and depress the eyeball |
|
inferior | orbital surface of the maxilla, lateral to the lacrimal groove | laterally onto the eyeball, deep to the lateral rectus, by a short flat tendon | | oculomotor nerve | extorsion, elevation, abduction |
|
Muscle | Origin | Insertion | Artery | Nerve | Action | Antagonist
|
ciliary | | | | oculomotor nerve (parasympathetics) | accommodation |
|
iris dilator | | | | superior cervical ganglion (sympathetics) | pupil dilation | iris sphincter muscle
|
iris sphincter | | | | short ciliary nerves | constricts pupil | iris dilator muscle
|
Nose
Muscle | Origin | Insertion | Artery | Nerve | Action | Antagonist
|
procerus | From fascia over the lower of the nasal bone | skin of the lower part of the forehead between the eyebrows | | Buccal branch of the facial nerve | Draws down the medial angle of the eyebrow giving expressions of frowning |
|
nasalis | Maxilla | Nasal bone | | Buccal branch of the facial nerve | Compresses bridge, depresses tip of nose, elevates corners of nostrils |
|
Muscle | Origin | Insertion | Artery | Nerve | Action | Antagonist
|
dilatator naris | margin of the nasal notch of the maxilla, greater andlesser alar cartilages | skin near the margin of the nostril | | Buccal branch of the facial nerve | Dilation of nostrils |
|
Muscle | Origin | Insertion | Artery | Nerve | Action | Antagonist
|
depressor septi nasi | incisive fossa of the maxilla | nasal septum and back part of the alar part of nasalis muscle | | Buccal branch of the facial nerve | Depression of nasal septum |
|
levator labii superioris alaeque nasi | maxilla | nostril and upper lip | | buccal branch of facial nerve | dilates the nostril; elevates the upper lip and wing of the nose |
|
Mouth
Muscle | Origin | Insertion | Artery | Nerve | Action | Antagonist
|
levator labii superioris | Medial infra-orbital margin | Skin and muscle of the upper lip (labii superioris) | facial artery | buccal branch of the facial nerve | Elevates the upper lip |
|
depressor labii inferioris | oblique line of the mandible, between the symphysis and the mental foramen | integument of the lower lip, Orbicularis oris fibers, its fellow of the opposite side | | facial nerve | depress the lower lip |
|
Zygomaticus:
Muscle | Origin | Insertion | Artery | Nerve | Action | Antagonist
|
mentalis | anterior mandible | chin | | mandibular branch of facial nerve | elevates and wrinkles skin of chin, protrudes lower lip |
|
buccinator | alveolar processes of the maxillary bone and mandible, pterygomandibular raphe | in the fibres of the orbicularis oris | buccal artery | buccal branch of the facial nerve | compress the cheeks against the teeth (blowing), mastication. |
|
orbicularis oris | Maxilla and mandible | Skin around the lips | | buccal branch of the facial nerve | pucker the lips |
|
risorius | parotid fascia | modiolus | facial artery | Buccal branch of the facial nerve | draw back angle of mouth |
|
Muscle | Origin | Insertion | Artery | Nerve | Action | Antagonist
|
masseter | zygomatic arch and maxilla | coronoid process and ramus of mandible | masseteric artery | masseteric nerve (V3) | elevation (as in closing of the mouth) and retraction of mandible | Platysma muscle
|
temporalis | temporal lines on the parietal bone of the skull | coronoid process of the mandible | deep temporal | third branch (mandibular nerve) of the trigeminal nerve | elevation and retraction of mandible | Platysma muscle
|
Pterygoid:
Extrinsic
Intrinsic
Pharyngeal constrictor:
Muscle | Origin | Insertion | Artery | Nerve | Action | Antagonist
|
inferior | cricoid and thyroid cartilage | pharyngeal raphe | | external laryngeal branch of the vagus | Swallowing |
|
middle | hyoid bone | pharyngeal raphe | | Vagus nerve | Swallowing |
|
superior | medial pterygoid plate, pterygomandibular raphé, alveolar process | pharyngeal raphe, pharyngeal tubercle | | Vagus nerve | Swallowing |
|
Muscle | Origin | Insertion | Artery | Nerve | Action | Antagonist
|
cricothyroid | Anterior and lateral cricoid cartilage | Inferior cornu and lamina of the thyroid cartilage | | external laryngeal branch of the vagus | tension and elongation of the vocal folds |
|
Cricoarytenoid:
Muscle | Origin | Insertion | Artery | Nerve | Action | Antagonist
|
posterior | posterior part of the cricoid | muscular process of the arytenoid cartilage | | recurrent laryngeal branch of the vagus | abducts and laterally rotates the cartilage, pulling the vocal ligaments away from the midline and forward and so opening the rima glottidis | Lateral cricoarytenoid muscle
|
lateral | lateral part of the arch of the cricoid | muscular process of the arytenoid cartilage | | recurrent laryngeal branch of the vagus | adduct and medially rotate the cartilage, pulling the vocal ligaments towards the midline and backwards and so closing off the rima glottidis |
|
Cevical
Suprahyoid
Infrahyoid/Strap
Vertevral
Anterior
Muscle | Origin | Insertion | Artery | Nerve | Action | Antagonist
|
longus colli | Transverse processes of C-3 - C-6 | Inferior surface of the occipital bone | | C2-C6 | Flexes the neck and head |
|
longus capitis | anterior tubercles of the transverse processes of the third, fourth, fifth, and sixth cervical vertebræ | basilar part of the occipital bone | | C1-C3/C4 | flexion of neck at atlanto-occipital joint |
|
rectus capitis anterior | atlas | occipital bone | | C1 | flexion of neck at atlanto-occipital joint |
|
rectus capitis lateralis | upper surface of the transverse process of the atlas | under surface of the jugular process of the occipital bone | | C1 | |
|
Lateral
Muscle | Origin | Insertion | Artery | Nerve | Action | Antagonist
|
scalene | cervical vertebrae (C2-C7) | first and second ribs | Ascending cervical artery (branch of Inferior thyroid artery) | cervical nerves (C3-C7) | elevation of ribs I&II |
|
Muscle | Origin | Insertion | Artery | Nerve | Action | Antagonist
|
anterior | C3-C6 | first rib | Ascending cervical artery (branch of Inferior thyroid artery) | ventral ramus of C5, C6 | |
|
medius | C2-C6 | first rib | Ascending cervical artery (branch of Inferior thyroid artery) | Ventral rami of the third to eighth cervical spinal nerves | Elevate 1st rib, rotate the neck to the opposite side |
|
posterior | transverse processes of C4 - C6 | 2nd rib | Ascending cervical artery, superficial cervical artery | C6 - C8 | Elevate 2nd rib, tilt the neck to the same side |
|
splenius:
Muscle | Origin | Insertion | Artery | Nerve | Action | Antagonist
|
capitis | Ligamentum nuchae, spinous process of C7-T6 | Mastoid process of temporal and occipital bone | | C3, C4 | Extend, rotate, and laterally flex the head |
|
cervicis | spinous processes of T3-T6 | transverse processes of C1-C3 | | C5, C6 | |
|
Muscle | Origin | Insertion | Artery | Nerve | Action | Antagonist
|
iliocostalis | | lateral sacral artery | | | |
|
longissimus | transverse process | transverse process | lateral sacral artery | posterior branch of spinal nerve | | Rectus abdominis muscle
|
spinalis | spinous process | spinous process | lateral sacral artery | posterior branch of spinal nerve | | Rectus abdominis muscle
|
Muscle | Origin | Insertion | Artery | Nerve | Action | Antagonist
|
latissimus dorsi | spinous processes of thoracic T6-T12, thoracolumbar fascia, iliac crest and inferior 3 or 4 ribs | floor of intertubercular groove of the humerus | subscapular artery, dorsal scapular artery | thoracodorsal nerve | pulls the forelimb dorsally and caudally | deltoid, trapezius
|
transversospinales | transverse process | spinous process | | posterior branches | |
|
Muscle | Origin | Insertion | Artery | Nerve | Action | Antagonist
|
semispinalis dorsi | transverse processes of the sixth to the tenth thoracic vertebræ | spinous processes of the upper four thoracic and lower two cervical vertebrae | | | |
|
semispinalis cervicis | transverse processes of the upper five or six thoracic vertebræ | cervical spinous processes, from the axis to the fifth | | | |
|
Semispinalis capitis | Transversal process of lower cervical and higher thoracal columna | Area between superior and inferior nuchal line | | Greater occipital nerve | Extend the head |
|
multifidus | Sacrum, Erector spinae Aponeurosis, PSIS, and Iliac crest | spinous process | | Posterior branches | Stabilizes vertebrae in local movements of vertebral column |
|
rotatores | transverse process | spinous process | | posterior branch | |
|
Muscle | Origin | Insertion | Artery | Nerve | Action | Antagonist
|
interspinales | Spinous process | Spinous process | | Posterior rami of spinal nerves | Extension, flexion and rotation of vertebral column. |
|
intertransversarii | Transverse process | Transverse process above | | Anterior rami of spinal nerves | Lateral flexion of trunk |
|
Suboccipital
rectus capitis posterior:
Muscle | Origin | Insertion | Artery | Nerve | Action | Antagonist
|
major | Spinous process of the axis (C2) | Inferior nucheal line of the occipital bone | | Dorsal ramus of C1 (suboccipital nerve) | |
|
minor | the tubercle on the posterior arch of the atlas | the medial part of the inferior nuchal line of the occipital bone and the surface between it and the foramen magnum | | a branch of the dorsal primary division of the suboccipital nerve | extends the head at the neck, but is now considered to be more of a sensory organ than a muscle |
|
obliquus capitis:
Muscle | Origin | Insertion | Artery | Nerve | Action | Antagonist
|
inferior | spinous process of the axis | lateral mass of atlas | | suboccipital nerve | |
|
superior | lateral mass of atlas | lateral half of the inferior nuchal line | | suboccipital nerve | |
|
Chest
Muscle | Origin | Insertion | Artery | Nerve | Action | Antagonist
|
intercostales | ribs 1-11 | ribs 2-12 | intercostal arteries | intercostal nerves | |
|
Muscle | Origin | Insertion | Artery | Nerve | Action | Antagonist
|
subcostales | inner surface of one rib | inner surface of the second or third rib above, near its angle | | intercostal nerves | |
|
transversus thoracis | costal cartilages of last 3-4 ribs, body of sternum, xiphoid process | ribs/costal cartilages 2-6 | intercostal arteries | intercostal nerves | depresses ribs |
|
levatores costarum | Transverse processes of C7 to T12 vertebrae | Superior surfaces of the ribs immediately inferior to the preceding vertebrae | | dorsal rami C8-T11 | Assists in elevation of the thoracic rib cage |
|
serratus posterior:
Muscle | Origin | Insertion | Artery | Nerve | Action | Antagonist
|
inferior | vertebrae T11 - L3 | the inferior borders of the 9th through 12th ribs | intercostal arteries | intercostal nerves | depress the lower ribs, aiding in expiration |
|
superior | nuchal ligament (or ligamentum nuchae) and the spinous processes of the vertebrae C7 through T3 | the upper borders of the 2nd through 5th ribs | intercostal arteries | 2nd through 5th intercostal nerves | elevate the ribs which aids in inspiration |
|
diaphragm | | | Pericardiacophrenic artery, Musculophrenic artery, Inferior phrenic arteries | phrenic and lower intercostal nerves | respiration |
|
obliques:
Muscle | Origin | Insertion | Artery | Nerve | Action | Antagonist
|
external | Lower 8 costae | Crista iliaca, ligamentum inguinale | | lower 6 intercostal nerve, subcostal nerve | Rotates torso |
|
internal | Inguinal ligament, Iliac crest and the Lumbodorsal fascia | Linea alba, Xiphoid process and the inferior ribs. | | | Compresses abdomen and rotates vertebral column. |
|
Muscle | Origin | Insertion | Artery | Nerve | Action | Antagonist
|
transversus abdominis | ribs and the iliac crest | inserts into the pubic tubercle via the conjoint tendon, also known as the falx inguinalis | | lower intercostal nerves, iliohypogastric nerve and the ilioinguinal nerve | compress the ribs and viscera, providing thoracic and pelvic stability |
|
rectus abdominis | pubis | Costal cartilage of ribs 5-7, xiphoid process of sternum | inferior epigastric artery | segmentally by thoraco-abdominal nerves (T7 to T12) | flexion of trunk/lumbar vertebrae | Erector spinae
|
pyramidalis | pubic symphysis and pubic crest | linea alba | | Subcostal nerve (T12) | tensing the linea alba |
|
cremaster | inguinal ligament | | Cremasteric artery | genital branch of genitofemoral nerve | raise and lower the scrotum |
|
quadratus lumborum | iliac crest and iliolumbar ligament | Last rib and transverse processes of lumbar vertebrae | Lumbar arteries, Iliolumbar artery | The twelfth thoracic and first through fourth lumbar nerves | Alone, lateral flexion of vertebral column; Together, depression of thoracic rib cage |
|
Pelvis
levator ani:
Muscle | Origin | Insertion | Artery | Nerve | Action | Antagonist
|
iliococcygeus | ischial spine and from the posterior part of the tendinous arch of the pelvic fascia | coccyx and anococcygeal raphé | | | supports the viscera in pelvic cavity |
|
pubococcygeus | back of the pubis and from the anterior part of the obturator fascia | coccyx and sacrum | | | controls urine flow and contracts during orgasm |
|
puborectalis | lower part of the symphysis pubis | | S3, S4. levator ani nerve [2] | | inhibit defecation |
|
Muscle | Origin | Insertion | Artery | Nerve | Action | Antagonist
|
coccygeus | Sacrospinous ligament | | a branch from the fourth and fifth sacral nerves | | closing in the back part of the outlet of the pelvis |
|
sphincter ani:
Muscle | Origin | Insertion | Artery | Nerve | Action | Antagonist
|
externus | | | | branch from the fourth sacral and twigs from the inferior hemorrhoidal branch of the pudendal nerve | keep the anal canal and anus closed, aids in the expulsion of the feces |
|
internus | | | | pudendal nerve | keep the anal canal and anus closed, aids in the expulsion of the feces |
|
superficial perineal pouch:
Muscle | Origin | Insertion | Artery | Nerve | Action | Antagonist
|
transversus perinei superficialis | anterior part of ischial tuberosity | central point of perineum | | pudendal nerve | |
|
bulbospongiosus | Median raphé | | Perineal artery | pudendal nerve | in males, empties the urethra; in females, clenches the vagina |
|
ischiocavernosus | | | Perineal artery | pudendal nerve | assists the bulbospongiosus muscle |
|
deep perineal pouch:
Muscle | Origin | Insertion | Artery | Nerve | Action | Antagonist
|
transversus perinei profundus | inferior rami of the ischium | its fellow of the opposite side | pudendal nerve | | |
|
sphincter urethrae membranaceae | junction of the inferior rami of the pubis and ischium to the extent of 1.25 to 2 cm., and from the neighboring fasciæ | its fellow of the opposite side | | perineal branch of the pudendal nerve (S2,3,4) | Constricts urethra, maintain urinary continence |
|
Muscles of upper limbs
Muscle | Origin | Insertion | Artery | Nerve | Action | Antagonist
|
trapezius | down the midline, from the external occipital protuberance, the nuchal ligament, the medial part of the superior nuchal line, and the spinous processes of the vertebrae C7-T12 | at the shoulders, into the lateral third of the clavicle, the acromion process, and into the spine of the scapula | | major nerve supply is the cranial nerve XI. Cervical nerves C3 and C4 receive information about pain in this muscle | retraction of scapula | Serratus anterior muscle
|
latissimus dorsi | spinous processes of thoracic T6-T12, thoracolumbar fascia, iliac crest and inferior 3 or 4 ribs | floor of intertubercular groove of the humerus | subscapular artery, dorsal scapular artery | thoracodorsal nerve | pulls the forelimb dorsally and caudally | deltoid, trapezius
|
rhomboids | nuchal ligaments, spinous processes of C7-T5 vertebrae | medial border of the scapula | dorsal scapular artery | dorsal scapular nerve (C4 and C5) | Retracts the scapula and rotates it to depress the glenoid cavity. fixes the scapula to the thoracic wall. | Serratus anterior muscle
|
Muscle | Origin | Insertion | Artery | Nerve | Action | Antagonist
|
rhomboid major | spinous processes of the T2 to T5 vertebrae | medial border of the scapula, inferior to the insertion of rhomboid minor muscle | dorsal scapular artery | dorsal scapular nerve (C4 and C5) | Retracts the scapula and rotates it to depress the glenoid cavity. It also fixes the scapula to the thoracic wall. | Serratus anterior muscle
|
rhomboid minor | nuchal ligaments and spinous processes of C7- to T1 vertebrae | medial border of the scapula, superior to the insertion of rhomboid major muscle | dorsal scapular artery | dorsal scapular nerve (C4 and C5) | Retracts the scapula and rotates it to depress the glenoid cavity. It also fixes the scapula to the thoracic wall. | Serratus anterior muscle
|
Muscle | Origin | Insertion | Artery | Nerve | Action | Antagonist
|
levator scapulae | Posterior tubercles of transverse processes of C1 - C4 vertebrae | Superior part of medial border of scapula | dorsal scapular artery | cervical nerve (C3, C4) and dorsal scapular nerve (C5) | Elevates scapula and tilts its glenoid cavity inferiorly by rotating scapula |
|
Muscle | Origin | Insertion | Artery | Nerve | Action | Antagonist
|
pectoralis major | anterior surface of the medial half of the clavicle. Sternocostal head: anterior surface of the sternum, the superior six costal cartilages | intertubercular groove of the humerus | pectoral branch of the thoracoacromial trunk | lateral pectoral nerve and medial pectoral nerve Clavicular head: C5 and C6 Sternocostal head: C7, C8 and T1 | Clavicular head: flexes the humerus Sternocostal head: extends the humerus As a whole, adducts and medially rotates the humerus. It also draws the scapula anteriorly and inferiorly. |
|
pectoralis minor | 3rd to 5th ribs, near their costal cartilages | medial border and superior surface of the coracoid process of the scapula | Pectoral branch of the thoracoacromial trunk | Medial pectoral nerves (C8, T1) | stabilizes the scapula by drawing it inferiorly and anteriorly against the thoracic wall |
|
subclavius | first rib | subclavian groove of clavicle | thoracoacromial artery, clavicular branch | nerve to subclavius | depression of clavicle |
|
serratus anterior | fleshy slips from the outer surface of upper 8 or 9 ribs | costal aspect of medial margin of the scapula | lateral thoracic artery (upper part), thoracodorsal artery (lower part) | long thoracic nerve (from roots of brachial plexus C5, 6, 7) | protract and stabilize scapula, assists in upward rotation | Rhomboid major, Rhomboid minor, Trapezius
|
Muscle | Origin | Insertion | Artery | Nerve | Action | Antagonist
|
deltoid | clavicle, acromion, [[spine of the scapula] | deltoid tuberosity of humerus | primarily posterior circumflex humeral artery | Axillary nerve | shoulder abduction, flexion and extension | Latissimus dorsi
|
teres major | posterior aspect of the inferior angle of the scapula | medial lip of the intertubercular sulcus of the humerus | Subscapular and circumflex scapular arteries | Lower subscapular nerve (segmental levels C5 and C6) | Internal rotation of the humerus |
|
Rotator cuff: | Various aspects of scapula | greater tubercle of humerus, except subscapularis, which inserts on lesser tubercle of humerus. | | | lateral rotation (Infraspinatus teres minor), medial rotation (subscapularis), abduction (supraspinatus) [3] |
|
Muscle | Origin | Insertion | Artery | Nerve | Action | Antagonist
|
supraspinatus | supraspinous fossa of scapula | superior facet of greater tubercle of humerus | suprascapular artery | suprascapular nerve | abduction of arm and stabilizes humerus |
|
infraspinatus | infraspinous fossa of the scapula | middle facet of greater tubercle of the humerus | suprascapular and circumflex scapular arteries | suprascapular nerve | Lateral rotation of arm & Adduction of arm and stabilizes humerus |
|
teres minor | lateral border of the scapula | inferior facet of greater tubercle of the humerus | lateral circumflex humeral artery and the circumflex scapular artery | axillary nerve | laterally rotates and adducts the arm |
|
subscapularis | subscapular fossa | lesser tubercle of humerus | subscapular artery | upper subscapular nerve, lower subscapular nerve (C5, C6) | rotates medially humerus; stabilizes shoulder |
|
Anterior compartment
Posterior compartment
Muscle | Origin | Insertion | Artery | Nerve | Action | Antagonist
|
triceps brachii | long head: scapula lateral head: posterior humerus medial head: posterior humerus | olecranon process of ulna | deep brachial artery | radial nerve | extends forearm, caput longum adducts shoulder | Biceps brachii muscle
|
anconeus | lateral epicondyle of the humerus | lateral surface of the olecranon process and the superior part of the posterior ulna | deep brachial artery, recurrent interosseous artery | radial nerve (C7, C8, and T1) | partly blended in with the triceps, which it assists in extension of the forearm. Stabilises the elbow and abducts the ulna during pronation. |
|
Anterior compartment
Superficial
Deep
Muscle | Origin | Insertion | Artery | Nerve | Action | Antagonist
|
pronator quadratus | medial, anterior surface of the ulna | lateral, anterior surface of the radius | anterior interosseous artery | median nerve (anterior interosseous nerve) | pronates the forearm | Supinator muscle
|
flexor digitorum profundus | ulna | distal phalanges | anterior interosseous artery | median (anterior interosseous), muscular branches of ulnar | flex hand, interphalangeal joints | Extensor digitorum muscle
|
flexor pollicis longus | The middle 2/4 of the volar surface of the radius and the adjacent interosseus membrane. (Also occasionally a small origin slightly on the medial epicondyle of the ulna.) | The base of the distal phalanx of the thumb | Anterior interosseus artery | Anterior interosseous nerve (branch of median nerve) (C8, T1) | Flexion of the thumb | Extensor pollicis longus muscle, Extensor pollicis brevis muscle
|
Posterior compartment
Superficial
Deep
Muscle | Origin | Insertion | Artery | Nerve | Action | Antagonist
|
supinator | Lateral epicondyle of humerus, supinator crest of ulna, radial collateral ligament, annular ligament | Lateral proximal radial shaft | radial recurrent artery | posterior interosseous nerve (C7, 8) | supinates forearm | Pronator teres, Pronator quadratus
|
Muscle | Origin | Insertion | Artery | Nerve | Action | Antagonist
|
abductor pollicis longus | ulna, radial styloid process | first metacarpal | | posterior interosseous nerve (C7, 8) | abduction, extension of thumb | Adductor pollicis muscle
|
extensor pollicis brevis | radius | thumb, proximal phalanx | posterior interosseous artery | posterior interosseous nerve (C7, 8) | extension of thumb at metacarpophalangeal joint | Flexor pollicis longus muscle, Flexor pollicis brevis muscle
|
extensor pollicis longus | ulna | thumb, distal phalanx | | posterior interosseous nerve (C7, 8) | extension of the thumb (metacarpophalangeal and interphalangeal) | Flexor pollicis longus muscle, Flexor pollicis brevis muscle
|
Lateral volar
Medial volar
Muscle | Origin | Insertion | Artery | Nerve | Action | Antagonist
|
palmaris brevis | flexor retinaculum (medial), palmar aponeurosis | palm | | superficial branch of ulnar nerve | wrinkle skin of palm |
|
Hypothenar :
Intermediate
Muscles of lower limb
ILIAC REGION
Muscle | Origin | Insertion | Artery | Nerve | Action | Antagonist
|
Iliopsoas | iliac fossa (iliacus, sacrum (iliacus), spine (T12-L5) & intervertebral discs (psoas major, psoas minor) [4] | femur - lesser trochanter (psoas major/minor), shaft below lesser trochanter (iliacus), tendon of psoas major & femur (iliacus) [4] | medial femoral circumflex artery, iliolumbar artery | femoral nerve, Lumbar nerves L1, L2 | flexion of hip (psoas major/minor, liacus), spine rotation (psoas major/minor) | Gluteus maximus, posterior compartment of thigh
|
Muscle | Origin | Insertion | Artery | Nerve | Action | Antagonist
|
gluteals: | | | | | |
|
Muscle | Origin | Insertion | Artery | Nerve | Action | Antagonist
|
gluteus maximus muscle | Gluteal surface of ilium, lumbar fascia, sacrum, sacrotuberous ligament | Gluteal tuberosity of the femur, iliotibial tract | superior and inferior gluteal arteries | inferior gluteal nerve (L5, [[sacral segment|S1, S2 nerve roots) | external rotation and extension of the hip joint, supports the extended knee through the iliotibial tract, chief antigravity muscle in sitting | Iliacus, Psoas major, Psoas minor
|
gluteus medius muscle | Gluteal surface of ilium, under gluteus maximus | Greater trochanter of the femur | superior gluteal artery | superior gluteal nerve (L4, L5, S1 nerve roots) | abduction of the hip; preventing adduction of the hip. Medial rotation of thigh. | lateral rotator group
|
minimus | Gluteal surface of ilium, under gluteus medius. | Greater trochanter of the femur | superior gluteal artery | superior gluteal nerve (L4, L5, S1 nerve roots) | Works in concert with gluteus medius: abduction of the hip; preventing adduction of the hip. Medial rotation of thigh. | lateral rotator group
|
tensor fasciae latae | iliac crest | iliotibial tract | primarily lateral circumflex femoral artery, Superior gluteal artery | Superior gluteal nerve (L4-L5) | Thigh - flexion, medial rotation. Trunk stabilization. |
|
lateral rotator group: | at or below the acetabulum of the ilium | on or near the greater trochanter of the femur | Inferior gluteal artery, Lateral sacral artery, Superior gluteal artery | Obturator nerve, nerve to the Piriformis, nerve to quadratus femoris | lateral rotation of hip | Gluteus minimus muscle, Gluteus medius muscle
|
piriformis | sacrum | greater trochanter | Inferior gluteal artery , Lateral sacral artery, Superior gluteal artery | nerve to the Piriformis (L5, S1, and S2 nerve roots) | rotate laterally (outward) the thigh |
|
obturator externus | obturator foramen and obturatory membrane | medial aspect of greater trochanter of femur | obturator artery | posterior branch of obturator nerve (third and fourth lumbar nerves) | adduct thigh, rotate laterally thigh |
|
obturator internus | Ischiopubic ramus & obturator membrane | medial aspect of the Greater trochanter | | Nerve to obturator internus (L5, S2) | Abducts & rotates laterally thigh, and stabiliser of the hip during walking |
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inferior gemellus | Ischial tuberosity | Obturator internus tendon | | Nerve to Quadratus femoris (L4-S1) | Rotates laterally thigh |
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superior gemellus | spine of the ischium | Obturator internus tendon | | Sacral plexus (S1, S2, S3) | Rotates laterally thigh |
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quadratus femoris | Ischial tuberosity | Intertrochanteric crest | Inferior gluteal artery | Nerve to quadratus femoris (L4-S1) | lateral rotation of thigh |
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anterior compartment
posterior compartment/hamstring
Muscle | Origin | Insertion | Artery | Nerve | Action | Antagonist
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biceps femoris | tuberosity of the ischium, linea aspera, femur | the head of the fibula which articulates with the back of the lateral tibial condyle | inferior gluteal artery, perforating arteries, popliteal artery | long head: tibial nerve, short head: common peroneal nerve | flexes knee joint, laterally rotates knee joint (when knee is flexed), extends hip joint (long head only) | Quadriceps muscle
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semitendinosus | tuberosity of the ischium | pes anserinus | inferior gluteal artery, perforating arteries | sciatic (tibial, L5, S1, S2) | flex knee, extend hip joint | Quadriceps muscle
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semimembranosus | Ischial tuberosity | Medial surface of tibia | profunda femoris, gluteal artery | sciatic nerve | Hip extension, Knee flexion | Quadriceps muscle
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medial compartment
Muscle | Origin | Insertion | Artery | Nerve | Action | Antagonist
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adductor muscles of the hip | pubis | femur, tibia | | obturator nerve | adduction of hip |
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anterior compartment
posterior compartment
Superficial
Deep
Muscle | Origin | Insertion | Artery | Nerve | Action | Antagonist
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popliteus | middle facet of the lateral surface of the lateral femoral condyle | posterior tibia under the tibial condyles | popliteal artery | tibial nerve | Medial rotation and flexion of knee |
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tarsal tunnel:
lateral compartment
fibularis muscles:
Dorsal
Muscle | Origin | Insertion | Artery | Nerve | Action | Antagonist
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extensor digitorum brevis | calcaneus | toes | | peroneal nerve | extends digits 2, 3, and 4 | Flexor digitorum longus, Flexor digitorum brevis
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extensor hallucis brevis | calcaneus | | | deep peroneal nerve | Extension of hallux | Flexor hallucis brevis muscle
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Plantar
1st layer
Muscle | Origin | Insertion | Artery | Nerve | Action | Antagonist
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abductor hallucis | | | | plantar nerve | abducts hallux | Adductor hallucis muscle
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flexor digitorum brevis | | | | plantar nerve | flexes lateral four toes | Extensor digitorum longus, Extensor digitorum brevis
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abductor digiti minimi | Plantar aponeurosis | Fifth toe or Phalanges | lateral plantar artery | lateral plantar nerve (S1,2) | flex and abduct the fifth toe | Flexor digiti minimi brevis muscle
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2nd layer
Muscle | Origin | Insertion | Artery | Nerve | Action | Antagonist
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quadratus plantae | Calcaneus | Tendons of Flexor Digitorum Longus | | lateral plantar nerve (S1,2) | Assists Flexor Digitorum Longus in flexion of DIP joints |
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lumbrical muscle | | | | plantar nerve | |
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3rd layer
Muscle | Origin | Insertion | Artery | Nerve | Action | Antagonist
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flexor hallucis brevis | | | | medial plantar nerve | flex hallux | Extensor hallucis longus muscle
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adductor hallucis | | | | plantar nerve | adducts hallux | Abductor hallucis muscle
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flexor digiti minimi brevis | fifth metatarsal bone | phalanx of the fifth toe | | plantar nerve | extend and adduct the fifth toe | Abductor digiti minimi muscle
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4th layer
Muscle | Origin | Insertion | Artery | Nerve | Action | Antagonist
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dorsal interossei | | | | plantar nerve | abduct toes | Plantar interossei muscles
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plantar interossei | metatarsals | proximal phalanges | | plantar nerve | adduct toes | Dorsal interossei of the foot
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Summary
List of muscles of head and neck: the head |
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scalp/eyelid | occipitofrontalis (occipitalis, frontalis) - orbicularis oculi - corrugator supercilii - depressor supercilii |
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extraocular | levator palpebrae superioris - superior tarsal - rectus (superior, inferior, medial, lateral) - oblique (superior, inferior) |
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intraocular | ciliary - iris dilator - iris sphincter |
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ear | auriculares - temporoparietalis - stapedius - tensor tympani |
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nose | procerus - nasalis (dilatator naris) - depressor septi nasi - levator labii superioris alaeque nasi |
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mouth | levator anguli oris/depressor anguli oris - levator labii superioris/depressor labii inferioris - zygomaticus (major, minor) - mentalis - buccinator - orbicularis oris - risorius |
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mastication | masseter - temporalis - pterygoid (lateral, medial) |
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tongue | extrinsic (genioglossus, hyoglossus, chondroglossus, styloglossus) - intrinsic (superior longitudinal, inferior longitudinal, transversus, verticalis) |
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soft palate | levator veli palatini - tensor veli palatini - musculus uvulae - palatoglossus - palatopharyngeus |
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pharynx | pharyngeal constrictor (inferior, middle, superior) - stylopharyngeus - salpingopharyngeus |
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larynx | cricothyroid - cricoarytenoid (posterior, lateral) - arytenoid - thyroarytenoid |
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List of muscles of head and neck: the neck |
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CERVICAL | platysma - sternocleidomastoid |
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SUPRAHYOID | digastric - stylohyoid - mylohyoid - geniohyoid |
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INFRAHYOID/STRAP | sternohyoid - sternothyroid - thyrohyoid - omohyoid |
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VERTEBRAL — ANTERIOR | longus colli - longus capitis - rectus capitis anterior - rectus capitis lateralis |
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LATERAL | scalene (anterior - medius - posterior) |
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List of muscles of torso |
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BACK | splenius (capitis, cervicis) - erector spinae (iliocostalis, longissimus, spinalis) - latissimus dorsi transversospinales: (semispinalis dorsi, semispinalis cervicis, semispinalis capitis, multifidus, rotatores) - interspinales - intertransversarii |
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SUBOCCIPITAL | rectus capitis posterior (major, minor) - obliquus capitis (inferior, superior) |
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CHEST | intercostales (external, internal, innermost) - subcostales - transversus thoracis - levatores costarum - serratus posterior (inferior, superior) - diaphragm |
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ABDOMEN | anterior/lateral wall: obliques (external, internal) - transversus abdominis - rectus abdominis - pyramidalis
posterior wall: quadratus lumborum - psoas major/psoas minor - iliacus
cremaster |
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PELVIS/FLOOR | levator ani (iliococcygeus, pubococcygeus, puborectalis) - coccygeus |
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PERINEUM | anal triangle: sphincter ani (externus, internus)
superficial perineal pouch (superficial transverse perineal, bulbospongiosus, ischiocavernosus)
deep perineal pouch (deep transverse perineal, sphincter urethrae membranaceae) |
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List of muscles of upper limbs |
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VERTEBRAL COLUMN | trapezius - latissimus dorsi - rhomboid (major, minor) - levator scapulae |
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THORACIC WALLS | pectoralis major - pectoralis minor - subclavius - serratus anterior |
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SHOULDER | deltoid - rotator cuff (supraspinatus, infraspinatus, teres minor, subscapularis) - teres major |
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ARM | anterior compartment: coracobrachialis - biceps brachii - brachialis
posterior compartment: triceps brachii - anconeus |
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FOREARM | anterior compartment: super. - pronator teres - palmaris longus - flexor carpi radialis - flexor carpi ulnaris - flexor digitorum superficialis - deep - pronator quadratus - flexor digitorum profundus - flexor pollicis longus
posterior compartment: super. - mobile wad (brachioradialis, extensor carpi radialis longus and brevis) - extensor digitorum, - extensor digiti minimi - extensor carpi ulnaris - deep - supinator - anatomical snuff box (abductor pollicis longus, extensor pollicis brevis, extensor pollicis longus) - extensor indicis |
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HAND | lateral volar - thenar (opponens pollicis, flexor pollicis brevis, abductor pollicis brevis, adductor pollicis)
medial volar - palmaris brevis - hypothenar (abductor minimi digiti, flexor digiti minimi brevis, opponens digiti minimi)
intermediate - lumbrical - dorsal interossei - palmar interossei |
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List of muscles of lower limbs |
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ILIAC REGION/ILIOPSOAS | psoas major/psoas minor - iliacus |
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BUTTOCKS | gluteals: (maximus, medius, minimus) - tensor fasciae latae
lateral rotator group: piriformis - obturator externus/obturator internus - inferior gemellus/superior gemellus - quadratus femoris |
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THIGH | anterior compartment: sartorius - quadriceps (rectus femoris, vastus lateralis, vastus intermedius, vastus medialis) - articularis genu
posterior compartment/hamstring: biceps femoris - semitendinosus, semimembranosus
medial compartment: gracilis - pectineus - adductor (brevis, longus, magnus) |
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LEG | anterior compartment: tibialis anterior - extensor hallucis longus - extensor digitorum longus - fibularis tertius
posterior compartment: superficial - calf/triceps surae (gastrocnemius, soleus) - plantaris - deep - popliteus - tarsal tunnel (flexor hallucis longus, flexor digitorum longus, tibialis posterior)
lateral compartment: fibularis muscles (longus, brevis) |
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FOOT | dorsal - extensor digitorum brevis - extensor hallucis brevis
plantar - 1st layer (abductor hallucis, flexor digitorum brevis, abductor digiti minimi) - 2nd layer (quadratus plantae, lumbrical muscle) - 3rd layer (flexor hallucis brevis, adductor hallucis - flexor digiti minimi brevis) - 4th layer (dorsal interossei, plantar interossei) |
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Sources
- http://www.meddean.luc.edu/lumen/MedEd/GrossAnatomy/dissector/muscles/muscles.html
- http://www.ptcentral.com/muscles/
- http://www.rad.washington.edu/atlas2/
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