The Subclavius Muscle | Anatomy & Function [O, I, N, A]

The video tutorial provides an in-depth look at the subclavius muscle, a lesser-known muscle located beneath the clavicle. It covers the muscle's anatomy, including its origin, insertion, and the joints it interacts with. The tutorial explains the muscle's primary action of clavicular depression and rib elevation, as well as its innervation by the nerve to subclavius. A significant focus is on the muscle's structural role in protecting vital structures like the subclavian vein and artery, and the brachial plexus, especially in the event of a clavicle fracture. The video concludes by emphasizing the muscle's protective function over its contractile action.

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