Musculus infraspinatus

The video tutorial discusses the infraspinatus muscle, part of the rotator cuff, which stabilizes the shoulder. It covers the muscle's origin, attachment, innervation by the suprascapular nerve, and its role in external rotation and adduction of the arm. The tutorial also mentions related muscles in the rotator cuff and their collective function in shoulder stability.

What is the main function of the rotator cuff?

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List the muscles that belong to the rotator cuff.

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Where is the origin of the infraspinatus muscle located?

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Which nerve is responsible for the innovation of the infraspinatus muscle?

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What role does the infraspinatus muscle play in arm movement?

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