Scm Anatomy

Sternocleidomastoid muscle along with the trapezius muscle is invested by the superficial layer of the deep cervical fascia which splits around it. Sternocleidomastoid scm synonym musculus sternocleidomastoideus is a paired superficial muscle in the anterior portion of the neck.

001b Superficial And Deep Structures Of The Neck Anatomy

Sternocleidomastoid muscle divides the neck into anatomical anterior and posterior triangles.

Scm anatomy. The muscle originates at the central portion of the collarbone. It is given the name sternocleidomastoid because it originates at the manubrium of the sternum and the clavicle and has an insertion at the mastoid process of the temporal bone of the skull. The sternocleidomastoid muscle is one of the largest and most superficial cervical muscles.

The scm muscle helps turn and bend your neck anatomy of the scm. Out of the scores of books in my office basic clinical massage therapy is by far the most referenced book in my library. The sternocleidomastoid is innervated by the accessory nerve.

The sternocleidomastoid muscle scm is an important landmark in the neck which divides it into an anterior and a posterior triangle. This muscle helps the neck to turn to the side flex to the side and bend forward. The musculoskeletal system is overlaid on human models allowing you to learn the precise location origin and insertions of each muscle.

This muscle binds the skull to the sternum and clavicle. It inserts into the temporal bones mastoid process near the ear and the base of the skull and it stretches the entire length of the neck. The sternocleidomastoid runs diagonally from the back.

The sternocleidomastoid muscle is a two headed neck muscle which true to its name bears attachments to the manubrium of sternum sterno the clavicle cleido and the mastoid process of the temporal bone mastoid. The primary actions of the muscle are rotation of the head to the opposite side and flexion of the neck. Origin insertion action innervation.

In part the neck movements produced by the sterocleiomastoid vary. The scm becomes chronically shortened in cases of.

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