Anatomy

Question 1

Sternocleidomastoid origin

Answer 1

Upper part of anterior surface of manubrium & superior boarder anterior surface of medial third of clavical

Question 2

Sternocleidomastoid insertion

Answer 2

Lateral surface of mastoid process, nuchal line of occipital bone

Question 3

Sternocleidomastoid actions (4)

Answer 3

1) tilts head to shoulder of same side
2) rotates head to opposite side
3) flexes cervical spine
4) helps elevate thorax when breathing

Question 4

Splenius capitis origin

Answer 4

Spinous processes c7-t3

Question 5

Splenius capitis insertion

Answer 5

Mastoid process of temporal and occipital bones

Question 6

Splenius capitis actions (3)

Answer 6

1) holds head erect
2) cervical extension
3) draws head to one side , slightly turns head and face to same side