Anatomy | Muscles of Facial Expression [Action, Origin, & Insertion]

The video tutorial covers the anatomy and functions of various facial muscles, including the epicranius, temporalis, masseter, orbicularis oculi, orbicularis oris, zygomaticus, and sternocleidomastoid. It explains the origins, insertions, and actions of these muscles, highlighting their roles in facial expressions, mastication, and neck movements.

How do the actions of the anterior and posterior fibers of the temporalis differ?

What is the significance of the zygomaticus major muscle in facial expressions?

Describe the origin and insertion of the sternocleidomastoid muscle.

What movements are facilitated by the contraction of the sternocleidomastoid muscles?