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nounone 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 headtype of:
Definition that contains sternocleidomastoid
- plexus cervicalis a nerve plexus lying beneath the sternocleidomastoid muscle
- sternocleidomastoid vein drains the sternocleidomastoid muscle; empties into the internal jugular vein
- vena sternocleidomastoidea drains the sternocleidomastoid muscle; empties into the internal jugular vein
- cervical plexus a nerve plexus lying beneath the sternocleidomastoid muscle