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sternocleidomastoid muscle
Thesaurus| Noun | 1. | sternocleidomastoid muscle - one of two thick muscles running from the sternum and clavicle to the mastoid and occipital bone; turns head obliquely to the opposite side; when acting together they flex the neck and extend the headmusculus sternocleidomastoideus, sternocleido mastoideus, sternocleidomastoidskeletal muscle, striated muscle - a muscle that is connected at either or both ends to a bone and so move parts of the skeleton; a muscle that is characterized by transverse stripescervix, neck - the part of an organism (human or animal) that connects the head to the rest of the body; "he admired her long graceful neck"; "the horse won by a neck" |
EncyclopediaSeesternocleidomastoidsternocleidomastoid muscle
ster·no·clei·do·mas·toid mus·cle (SCM) (stĕr'nō-klī'dō-mas'toyd mŭs'ĕl) Origin, by two heads from anterior surface of manubrium of the sternum and sternal end of clavicle; insertion, mastoid process and lateral half of superior nuchal line; action, turns head obliquely to opposite side; when acting together, flex the neck and extend the head; nerve supply, motor by accessory, sensory by cervical plexus.
Synonym(s): musculus sternocleidomastoideus [TA] , sternomastoid muscle. sternocleidomastoid muscleNeck muscle. Origin: upper edge of manubrium, middle of upper clavicle. Insertion: mastoid process. Nerve: accessory (CN XI), spinal C2. Action: contralaterally rotates head. See: face and headfor illus.See also: muscleAcronymsSeeSCMsternocleidomastoid muscle
Synonyms for sternocleidomastoid musclenoun one of two thick muscles running from the sternum and clavicle to the mastoid and occipital boneSynonyms- musculus sternocleidomastoideus
- sternocleido mastoideus
- sternocleidomastoid
Related Words- skeletal muscle
- striated muscle
- cervix
- neck
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