#sternocleidomastoid_muscle__sternocleidomastoidmuscle__sternocleidomastoid__sternocleido_mastoideus__musculus_sternocleidomastoideus  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 head
  supertype:  #skeletal_muscle  a muscle that is connected at either or both ends to a bone and so move parts of the skeleton
  part of:  #cervix__neck  the part of an organism that connects the head to the rest of the body; "he admired her long graceful neck"
     part of:  #body__organic_structure__organicstructure__physical_structure  the entire physical structure of an organism (especially an animal or human being); "he felt as if his whole body were on fire"

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