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Sternocleidomastoid
one: rotates and extends neck. both: flex neck
The sternocleidomastoid muscle primarily rotates the head to the opposite side. When one side of the sternocleidomastoid contracts, it causes rotation of the head towards the opposite side while also tilting it to the same side. However, if both sides contract together, they flex the neck forward. Thus, the muscle does not rotate the head to the same side; that action is performed by other muscles.
The sternocleidomastoid muscle is located in the neck
When the Deltoid contracts the humerus abducts.
When the bicep contracts the triceps relax
When a muscle contracts, it shortens in length.
no, it is actually a skeletal muscle http://www.memidex.com/sternocleidomastoid-muscle
It contracts.
What are the antagonist of sternocleidomastiod muscle?
The sternocleidomastoid is a muscle that connects to your sternum, and the mastoid process.
It contracts