Face and Neck Muscles
12th Grade · Science · 30 min
Lesson Preview
Learning Objective
I can identify the major muscles of the face and neck and describe their primary functions.
- 1
All muscles of facial expression insert at the skin and are innervated by the facial nerve, which is cranial nerve number 7.
- 2
The orbicularis oculi muscle consists of three parts: the orbital part, the palpebral part, and the lacrimal part.
- 3
The muscles around the oral opening that produce a smile include the zygomaticus major, zygomaticus minor, and risorius muscles, all of which insert at the skin of the angle of the mouth.
