| Anterior triangle of the neck | |
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| Anterior triangle | |
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| Side of neck, showing chief surface markings. (Nerves are yellow, arteries are red.) | |
| Gray's | subject #145 563 |
The anterior triangle is a region of the neck.
Contents |
Boundaries
| its apex Jugular notch in manubrium of the sternum |
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| anteriorly Midline of the neck from chin to manubrium sterni |
posteriorly by the anterior margin of the Sternocleidomastoideus |
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| its base by the lower border of the body of the mandible, and a line extending from the angle of the mandible to the mastoid process |
Nerve Supply
2 Bellies of Digastric
- Anterior: Mylohyoid nerve
- Posterior: Facial nerve
Development
- Anterior: 1st Pharyngeal arch
- Posterior: 2nd Pharyngeal arch
Divisions
This space is subdivided into four smaller triangles by the Digastricus above, and the superior belly of the Omohyoideus below.
These smaller triangles are named:
- the muscular triangle
- the carotid triangle
- the submandibular triangle
- the submental triangle
Additional images
 Muscles of the neck. Anterior view. |
 The triangles of the neck. (Anterior triangles to the left; posterior triangles to the right. Suprahyoid labeled at left.) |
See also
Posterior triangle of the neck
External links
- lesson5 at The Anatomy Lesson by Wesley Norman (Georgetown University) (necktriangle)
- lesson6 at The Anatomy Lesson by Wesley Norman (Georgetown University)
This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained within it may be outdated.
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