|Category|| : ||Medical » Anatomy & Physiology
|Country/Region|| : ||Worldwide
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What does SCM mean?
The sternocleidomastoid (SCM) is a muscle of the neck so-named because it originates on the sternum (sterno) and the clavicle (cleido) and inserts on the mastoid process1 (mastoid) which is an easily located bony prominence behind the ear. The muscles pass diagonally across the front and side of the neck beginning at the top of the sternum and ending behind the ear. This two sided muscle is large and ropy, making it the most prominent muscle visible at the front of the neck.