Zygomaticus major muscle
Musculus zygomaticus major
- Related terms: Zygomaticus major
Definition
Origin: Anterior ofzygomatic
Insertion: Modiolus ofmouth
Artery: Facial artery
Nerve: Buccal branch of the facial nerve
Action: Draws angle of mouth upward and laterally
Description:
The Zygomaticus (Zygomaticus major) arises from the zygomatic bone, in front of the zygomaticotemporal suture, and descending obliquely with a medial inclination, is inserted into the angle of the mouth, where it blends with the fibers of the Caninus, Orbicularis oris, and Triangularis.
This definition incorporates text from a public domain edition of Gray's Anatomy (20th U.S. edition of Gray's Anatomy of the Human Body, published in 1918 – from http://www.bartleby.com/107/).
