Mental spine
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The posterior aspect of the mandible showing the mental spine.
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A medial view of the mandible showing the attachments of geniohyoid and genioglossus.
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Latin
| spinae mentalis
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Gray's
| subject #44 172
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The mental spine is a small projection of bone on the posterior aspect of the mandible (jaw bone) in the midline. It is also known as the genial tubercle[1], genial apophysis and the Latin name spinae mentalis. The mental spine is the point of insertion of the geniohyoid muscle[2], one of the suprahyoid muscles and the origin of the genioglossus muscle, one of the muscles of the tongue.
Additional recommended knowledge
References
- ^ "Genial tubercle." The American Heritage Stedman's Medical Dictionary. Houghton Mifflin Company, 2002. http://www.answers.com/topic/mental-spine Accessed: 22 Oct. 2007.
- ^ "Genial tubercle." Mosby's Dental Dictionary. Elsevier, Inc., 2004. http://www.answers.com/topic/mental-spine Accessed: 22 Oct. 2007.
Bones of head and neck: the face |
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maxilla | Body of maxilla - Maxillary sinus - surfaces of body Anterior (Incisive fossa, Canine fossa, Infraorbital foramen, Anterior nasal spine) - Infratemporal (Alveolar canals, Maxillary tuberosity) - Orbital (Infraorbital groove, Infraorbital canal) - Nasal (Pterygopalatine canal)
processes Zygomatic process - Frontal process (Agger nasi, Anterior lacrimal crest) - Alveolar process - Palatine process (Incisive foramen, Incisive canals, Foramina of Scarpa, Premaxilla, Anterior nasal spine) |
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lacrimal | Posterior lacrimal crest - Lacrimal groove |
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zygomatic | Orbital process - foramina (Zygomaticofacial, Zygomaticotemporal, Zygomaticoörbital) |
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palatine | Pterygopalatine fossa - Pterygoid fossa Horizontal plate (Posterior nasal spine) - Perpendicular plate (Pterygopalatine canal, Sphenopalatine foramen, Pyramidal process) processes (Orbital - Sphenoidal) |
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mandible | body (Symphysis menti, Mental protuberance, Mental foramen, Mental spine, Mylohyoid line) ramus (Mandibular foramen, Mylohyoid groove, Mandibular canal, Angle, Coronoid process, Condyloid process, Mandibular notch) |
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others | nasal bone - inferior nasal conchae (ethmoidal process, maxillary process) - vomer |
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