Medical Dictionary
1sternocleidomastoid
noun ster·no·clei·do·mas·toid \ˌstər-nō-ˌklīd-ə-ˈmas-ˌtȯid\
Medical Definition of STERNOCLEIDOMASTOID
: a thick superficial muscle on each side that arises by one head from the first segment of the sternum and by a second from the inner part of the clavicle, that inserts into the mastoid process and occipital bone, and that acts especially to bend, rotate, flex, and extend the head
Illustration of STERNOCLEIDOMASTOID
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