The Sternocleidomastoid (SCM) muscle is a long, slender muscle located in the neck that runs from the sternum and clavicle to the mastoid process of the temporal bone. It is responsible for rotating and flexing the head, as well as assisting in the movements of the neck during activities such as breathing, swallowing, and speaking. Additionally, the SCM helps stabilize the head and neck during posture and movement.
The Sternocleidomastoid (SCM) muscle is a long, slender muscle located in the neck that runs from the sternum and clavicle to the mastoid process of the temporal bone. It is responsible for rotating and flexing the head, as well as assisting in the movements of the neck during activities such as breathing, swallowing, and speaking. Additionally, the SCM helps stabilize the head and neck during posture and movement.