The submental triangle (or suprahyoid triangle) is a division of the
anterior triangle of the neck.
Boundaries
It is limited to:
*
Lateral
Lateral is a geometric term of location which may refer to:
Healthcare
*Lateral (anatomy), an anatomical direction
*Lateral cricoarytenoid muscle
*Lateral release (surgery), a surgical procedure on the side of a kneecap
Phonetics
*Lateral cons ...
(away from the midline), formed by the anterior belly of the
digastricus
The digastric muscle (also digastricus) (named ''digastric'' as it has two 'bellies') is a small muscle located under the jaw. The term "digastric muscle" refers to this specific muscle. However, other muscles that have two separate muscle belli ...
*
Medial (towards the midline), formed by the midline of the neck between the
mandible
In anatomy, the mandible, lower jaw or jawbone is the largest, strongest and lowest bone in the human facial skeleton. It forms the lower jaw and holds the lower tooth, teeth in place. The mandible sits beneath the maxilla. It is the only movabl ...
and the
hyoid bone
*
Inferior (below), formed by the
body of the hyoid bone
The hyoid bone (lingual bone or tongue-bone) () is a horseshoe-shaped bone situated in the anterior midline of the neck between the chin and the thyroid cartilage. At rest, it lies between the base of the mandible and the third cervical vertebr ...
*Floor is formed by the
mylohyoideus
*Roof is formed by
Investing layer of deep cervical fascia
Contents
It contains one or two
lymph glands
A lymph node, or lymph gland, is a kidney-shaped organ of the lymphatic system and the adaptive immune system. A large number of lymph nodes are linked throughout the body by the lymphatic vessels. They are major sites of lymphocytes that include ...
, the
submental lymph nodes
The submental glands (or suprahyoid) are situated between the anterior bellies of the digastric muscle and the hyoid bone.
Their '' afferents'' drain the central portions of the lower lip and floor of the mouth and the apex of the tongue.
Their ...
(three or four in number) and Submental veins and commencement of
anterior jugular veins.
(The contents of the triangle actually lie in the superficial fascia over the roof of submental triangle)
Additional images
File:Gray386.png, Muscles of the neck. Anterior view.
File:Gray558.png, The veins of the neck, viewed from in front.
File:Structure of Adam's apple.png, Front view of neck.
File:Gray512.svg, The triangles of the neck. (Anterior triangles to the left; posterior triangles to the right. Suprahyoid labeled at left.)
See also
*
Anterior triangle of the neck
*
Submental space
References
, Page 88 of Textbook of Anatomy; head, neck and brain by Vishram Singh
External links
* ()
*
* - "Identification of the subdivsions of the anterior triangle and corresponding borders."
* - "Anterior Triangle of the Neck: The Submental Triangle"
{{Authority control
Human head and neck
Triangles of the neck