Anterior triangle of the neck
From Wikipedia, the free encyclopedia
(Redirected from Anterior triangle)
|This article does not cite any references or sources. (October 2011)|
|Anterior triangle of the neck|
Side of neck, showing chief surface markings. (Nerves are yellow, arteries are red.)
The anterior triangle is a region of the neck.
The triangle is inverted with its apex inferior to its base which is under the chin.
|Inferior boundary (apex)||Jugular notch in the manubrium of the sternum|
|Anterior boundary||Midline of the neck from chin to the jugular notch|
|Posterior boundary||The anterior margin of Sternocleidomastoideus|
|Superior boundary (base)||The lower border of the body of the mandible, and a line extending from the angle of the mandible to the mastoid process|
- Suprahyoid muscles - Digastric (Ant and Post Belly) and Stylohyoid.
- Infrahyoid muscles - Omohyoid, Sternohyoid, Sternothyroid, and Thyrohyoid.
2 Bellies of Digastric
- Anterior: Mylohyoid nerve
- Posterior: Facial nerve
- Anterior: 1st Pharyngeal arch
- Posterior: 2nd Pharyngeal arch
These smaller triangles are named:
- lesson5 at The Anatomy Lesson by Wesley Norman (Georgetown University) (necktriangle)
- lesson6 at The Anatomy Lesson by Wesley Norman (Georgetown University)