Head and neck Flashcards
1
Q
Platysma: Distal
A
inferior clavicle and fascia of chest
2
Q
Platysma: Prox
A
mandible
3
Q
Platysma: Action
A
draws the corners of the mouth inferiorly and widens it. Also draws the skin of the neck superiorly when teeth are clenched
4
Q
Platysma: Nerve
A
cervical branch of the facial nerve (CN7)
5
Q
Sternocleidomastoid: Distal
A
manubrium sterni, medial portion of the clavicle
6
Q
Sternocleidomastoid: Prox
A
mastoid process of the temporal bone, superior nuchal line
7
Q
Sternocleidomastoid: Action
A
tilts head to its own side and rotates it so the face is turned towards the opposite side.
Acting together, flexes the neck, raises the sternum and assists in forced inspiration
8
Q
Sternocleidomastoid: Nerve
A
motor: accessory nerve
sensory: cervical plexus
