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.

Describe the anatomical location of the subclavius muscle.

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What is the primary action of the subclavius muscle?

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Explain the significance of the subclavius muscle during active inhalation.

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What are the nerve root components that innervate the subclavius muscle?

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What structures are located in the costoclavicular space?

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What potential injuries could occur if the clavicle fractures?

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How does the subclavius muscle contribute to the protection of the axillary vessels?

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