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Submental triangle

Submental triangle

The triangles of the neck. (Anterior triangles to the left; posterior triangles to the right. Suprahyoid labeled at left.)

Side of neck, showing chief surface markings. (Nerves are yellow, arteries are red.)
Latin	trigonum submentale
Gray's	subject #145 565
Dorlands/Elsevier	t_19/12823617

The submental triangle (or suprahyoid triangle) is a division of the anterior triangle of the neck.

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Boundaries

It is limited:

behind by the anterior belly of the Digastricus,
in front by the middle line of the neck between the mandible and the hyoid bone;
below, by the body of the hyoid bone;
its floor is formed by the Mylohyoideus.

It contains:

one or two lymph glands, the submental lymph nodes
some small veins; the latter unite to form the anterior jugular vein

Additional images

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.

v • d • e General anatomy of neck (Throat • Pharynx • Larynx)
Cartilages	Cricoid • Thyroid (Laryngeal prominence) • Epiglottis • Arytenoid • Cuneiform • Corniculate
Ligaments	extrinsic ligaments: Thyrohyoid membrane (Lateral thyrohyoid ligament, Median thyrohyoid ligament) • Hyoepiglottic ligament • Cricotracheal ligament intrinsic ligaments: Cricothyroid ligament
Folds and related structures	folds: (Glossoepiglottic, Aryepiglottic, Vocal, Vestibular) Vocal ligament • Ventricle of the larynx • Infraglottic cavity • Vestibule of larynx • Rima glottidis • Glottis
Triangles of the neck	Anterior of the neck (Muscular, Carotid, Submandibular, Submental) Posterior of the neck (Occipital, Subclavian) Suboccipital
Fascia	Deep cervical fascia (Pretrachial fascia, Prevertebral fascia, Investing layer) • Carotid sheath • Buccopharyngeal fascia
Other	Retropharyngeal space