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Questions and Answers
Which muscle assists in stabilizing the head of the humerus within the glenoid cavity?
Which nerve supplies the supraspinatus muscle?
From which part of the scapula does the deltoid muscle originate?
What action does the middle fibers of deltoid muscle perform?
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Which artery is not included in the shoulder region's arterial supply?
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Study Notes
Muscles of the Shoulder
- The supraspinatus muscle is assisted by the rotator cuff muscles in stabilizing the head of the humerus within the glenoid cavity.
- The supraspinatus muscle is supplied by the suprascapular nerve.
- The deltoid muscle originates from the lateral margin of the acromion process of the scapula.
- The middle fibers of the deltoid muscle perform abduction of the arm.
- The intercostal artery is not included in the shoulder region's arterial supply.
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Description
Test your knowledge of the shoulder region anatomy with this quiz. Learn about the muscles, nerves, and arteries in the scapular area and their functions.
