Head and Neck Muscles

Orbicularis oculi

Goes around the eye. Its job is to close the eyelid.

Orbicularis oris

Around the lips. Its job is to close and protrude the lips. This is duck face.

Zygomaticis

From corner of orbicular oris and coming across cheekbone. When you pull up it will elevate the corners of your mouth.

Platsyma

This will tense the skin of your neck. Coming down from the neck there is a thin light pink muscle that is laying across everything down in the neck. Will tense the skin of your neck and also depress it. It also helps open the mouth.

Frontalis

Top of the head. Across the top of the head is frontalis. This bitch gonna pull up from the level of the eyebrow. Therefore it elevates the eyebrows.

Occipitalis

Small shaded muscle. Action this is retracting and pulling the scalp backwards,

Buccinator

This bitch is deep this is the buccinator. This muscle squeezes and compresses the cheeks. Tip look for the parotid duct coming across.

Masetter

Huge muscle that comes down and attaches to the lower part of the jaw. It is rectangular shaped. Its job is to elevate and lift up the mandible

Temporalis

Comes down but goes to the inside of the jaw.

Sternocleiomastoid *

Named basically for all of its attachment points. Its job if only one side that’s contracting the head is going to turn at its gonna do a lateral rotation. If you have the sternocleidomastoid contracting with both sides of the head it's gonna pull the head forward known as a neck flexion. So when nodding head down.

Origin: Sternum and Clavicle

Insertion: Mastoid Process

Know that the origin point is where a muscle is going to be stationary attached and when muscle contracts and squeezes it pulls the insertion point down to the origin.