Clavicular Head of Sternocleidomastoid Muscle

The clavicular head of the stenocleidomastoid muscle is one of two heads for the origin of the stenocleidomastoid muscle. This sternocleidomastoid is a long muscle in the side of the neck that extends up from the thorax to the base of the skull behind the ear. When the sternocleidomastoid on one side contracts, the face is turned to the opposite side. When both muscles contract, the head is bent toward the chest. If the immovable end is fixed in position by other muscles, it can raise the ...

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    Full Clavicular Head of Sternocleidomastoid Muscle Description

    [Continued from above] . . . sternum (breastbone) - an action that aids in forceful inhalation of air.