Sternocleidomastiod Flashcards
1
Q
What is the UNILATERAL action of the SCM?
A
Laterally flex the head and neck to the same side
Rotate the head and neck to the opposite side
2
Q
What is the BILATERAL action of the SCM?
A
Flex the neck
Assist to elevate the ribcage during inhalation
3
Q
What is the origin of the Sternal head of the SCM?
A
The top of the manubrium
4
Q
What is the origin of the clavicular head?
A
Medial one-third of the clavicle
5
Q
What is the insertion point of the SCM?
A
Mastoid process of temporal bone and the lateral portion of superior nuchal line of occiput
