sternocleidomastoid /ster·no·clei·do·mas·toid/ (-kli″do-mas´toid) pertaining to the sternum, clavicle, and mastoid process.
sternocleidomastoid
ster·no·clei·do·mas·toid (stûr n -kl d -m s toid)adj. Relating to or characterizing the sternum, the clavicle, and the mastoid process. n. A muscle with origin from the anterior surface of the episternum and from the sternal end of the clavicle, with insertion into the mastoid process and the superior nuchal line, with nerve supply from the accessory nerve, and whose action turns the head obliquely to the opposite side and flexes the neck and extends the head when both sides act together. Also called sternomastoid. |
sternocleidomastoid
[-klī′dōmas′toid]
Etymology: Gk, sternon, chest, kleis, key, mastos, breast, eidos, form
a muscle of the neck that is attached to the mastoid process of the temporal bone and to the superior nuchal line and by separate heads to the sternum and clavicle. They function together to flex the head. Also called sternomastoid.
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