Sternocleidomastoid muscle nerve supply

The sternocleidomastoid muscle, often abbreviated as SCM, is a prominent muscle located in the neck. Its name is derived from its points of origin and insertion: the sternum (sterno-), clavicle (cleido-), and mastoid process of the temporal bone (mastoid). This large, superficial muscle plays a crucial role in various head movements, including rotation, flexion, and…