Where does the pectoralis major insert?

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Prepare for the NHI Eastern Kinesiology Test with our comprehensive quiz. Utilize flashcards and multiple-choice questions, complete with hints and detailed explanations. Ready yourself for success!

Multiple Choice

Where does the pectoralis major insert?

Explanation:
Pectoralis major attaches to the humerus at the lateral lip of the intertubercular (bicipital) groove. Its tendon brings the muscle’s force to that nearby groove, so the muscle can pull the arm inward toward the body (adduction) and rotate it medially, with the clavicular part helping to flex the arm. The crest of the greater tubercle is not the insertion site for this muscle; that area is associated with other structures, such as the rotator cuff tendons.

Pectoralis major attaches to the humerus at the lateral lip of the intertubercular (bicipital) groove. Its tendon brings the muscle’s force to that nearby groove, so the muscle can pull the arm inward toward the body (adduction) and rotate it medially, with the clavicular part helping to flex the arm. The crest of the greater tubercle is not the insertion site for this muscle; that area is associated with other structures, such as the rotator cuff tendons.

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