Question

multiple select question
select all that apply
which of the following are actions of the sternocleidomastoid?
□ extension of the head
□ rotation of the head
□ flexion of the head
□ extends neck

Explanation:

The sternocleidomastoid muscle can flex the head (bringing the chin towards the chest), rotate the head (turning the face to the side), and laterally flex the neck. It does not extend the head or extend the neck in the main actions.

Answer:

• Rotation of the head
• Flexion of the head