Which Muscle are You Using as You Turn Your Head

Question

Which muscle are you using as you turn your head down and to the left and then to the right?
A) Sternocleidomastoid
B) Frontalis
C) Pectoralis major
D) Diaphragm

Accepted Answer

The muscle responsible for turning the head down and to the left and right is the sternocleidomastoid. This muscle is located in the neck and connects the sternum and clavicle to the mastoid process of the temporal bone.