Anatomy, Head and Neck, Digastric Muscle

Anatomy, Head and Neck, Digastric Muscle

Eve N. Tranchito

Bruno Bordoni

In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2022 Jan.
2022 May 17.

2022

The digastrics are a pair of muscles individually made up of two distinct muscle bellies: the anterior and posterior digastrics. They derive embryonically from the first and second pharyngeal arches. Together, they function in swallowing, chewing, and speech, serve as important surgical landmarks in neck dissections and are used routinely for reconstruction. Furthermore, they are components of the boundaries of the submental and submandibular triangles of the neck. There are numerous anatomical variants of the digastrics which can be misleading on MRI or CT. Careful consideration of these variations is critical in clinical assessment and surgical planning.

English

http://www.ncbi.nlm.nih.gov/books/nbk544352/