Rotator cuff muscles Rotator_Cuff_2.mpg.

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Presentation transcript:

Rotator cuff muscles Rotator_Cuff_2.mpg

Which of the following muscles would not be considered part of the rotator cuff? a. supraspinatus b. infraspinatus c. teres minor d. teres major e. subscapularis Answer: D

The subscapularis muscle inserts on the lesser tubercle of the humerus. a. True b. False Answer: A

Downward dislocation of the humerus from the glenohumeral joint when carrying weight is prevented by the _____________ muscle. a. supraspinatus b. infraspinatus c. teres minor d. subscapularis Answer: A

The angle of the subscapularis muscle prevents _____________. a. lateral rotation of the humeral head in the glenoid cavity b. medial rotation of the humeral head in the glenoid cavity c. the humeral head from sliding upward out of the joint as the arm is raised d. the humeral head from sliding downward when carrying weight Answer: C

The teres minor muscle provides for external rotation of the humerus. a. True b. False Answer: A