Chp 10-Superficial Neck Muscles Flashcards
1
Q
Platysma - O =
A
fascia in chest
2
Q
Platysma - I =
A
lower border of mandible in lower skin of the face
3
Q
Platysma - A =
A
flexes neck if jaw is fixed, facial expressions
4
Q
Sternocleidomastoid - O =
A
sternum, clavicle
5
Q
Sternocleidomastoid - I =
A
mastoid process
6
Q
Sternocleidomastoid - A =
A
unilaterally rotates head to opposite side - bilaterally flexes head anteriorly – holds head erect
7
Q
Trapezius
A
the upper portion helps to extend the head
