OIAs Muscles that move the head (3)

Question 1

Sternocleidomastoid – use when doing sit ups the wrong way!

Answer 1

i. O: sternum & clavicle
ii. I: mastoid process
iii. A: pulls head to one side, towards the chest, & raises sternum (forceful)

Question 2

Splenius Capitus

Answer 2

i. O: spinous processes
ii. I: mastoid process
iii. A: extend, hyperextend head, rotates head