Part D Medial and Lateral Rotation Below is a picture of the teres minor on the

Question

Part D Medial and Lateral Rotation Below is a picture of the teres minor on the left and the subscapularis on the right. These muscles are considered antagonists because they produce opposing movements. Which statements correctly describe the action of each muscle? Choose all the correct answers Hints The subscapularis is the lateral rotator The teres minor is the medial rotator because its lines of action cross on the posterior side of the shoulder The teres minor is the medial rotator, because its lines of action cross on the posterior side of the shoulder. The subscapularis is the medial rotator. The teres minor is the medial rotator The teres minor is the lateral rotator The subscapulans is the medial rotator because its lines of action cross on the anterior side of the shoule The subscapularis is the lateral rotator, because its lines of action cross on the posterior side of the shoulder

Explanation / Answer

The following are the correct answers:

The subscapularis is the medial rotator.

The teres minor is the lateral rotator.

Cause: Subscapularis has posteriorly-directed muscle lines of action, whereas the teres minor has anteriorly-directed lines of action.

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