You hear a loud noise behind you and look back over your left shoulder. Which of the following is true?

A) This was a contralateral contraction of your left sternocleidomastoid muscle.
B) This was a contralateral contraction of your right sternocleidomastoid muscle.
C) This was an ipsilateral contraction of your right sternocleidomastoid muscle.
D) This was an ipsilateral contraction of your left sternocleidomastoid muscle.


B

Anatomy & Physiology

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