A. Buccal and Zygomatic branches of the facial nerve.
D. None of the above.
Ans;A. Facial nerve (buccal & zygomatic branch)
The muscle marked by an arrow represents Zygomaticus major.
- It is a muscle of facial expression which draws the angle of the mouth superiorly and posteriorly to allow one to smile.
- Like all muscles of facial expression, the zygomatic major is innervated by the facial nerve (the seventh cranial nerve), more specifically, the buccal and zygomatic branches of the facial nerve.