|The triangles of the neck. (Anterior triangles to the left; posterior triangles to the right. Submaxillary triangle labeled at left, second from top.)|
|Side of neck, showing chief surface markings. (Nerves are yellow, arteries are red.)|
|Gray's||subject #145 564|
The submandibular triangle (or submaxillary or digastric triangle) corresponds to the region of the neck immediately beneath the body of the mandible.
Boundaries and coverings
It is bounded:
- above, by the lower border of the body of the mandible, and a line drawn from its angle to the mastoid process;
- below, by the posterior belly of the Digastricus and the Stylohyoideus; in front, by the anterior belly of the Digastricus.
It is divided into an anterior and a posterior part by the stylomandibular ligament.
The posterior part of this triangle contains the external carotid artery, ascending deeply in the substance of the parotid gland
This vessel lies here in front of, and superficial to, the internal carotid, being crossed by the facial nerve, and gives off in its course the posterior auricular, superficial temporal, and internal maxillary branches: more deeply are the internal carotid, the internal jugular vein, and the vagus nerve, separated from the external carotid by the Styloglossus and Stylopharyngeus, and the glossopharyngeal nerve
- Norman/Georgetown lesson6
- SUNY Labs 25:16-0100
- SUNY Figs 25:01-01
- submandibular+triangle at eMedicine Dictionary
- Overview at bcm.edu
- Overview at howard.edu
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