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Rotator Cuff Muscles
URI Anatomy Quiz 12: Muscles of the Rotator Cuff
Question | Answer |
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It's origin is the supraspinous fossa of the scapula. It abducts the humerus. It's inserts on the humerus. | Supraspinatus muscle and suprascapular nerve |
It's origin is the infraspinous fossa of the scapula. It laterally rotates the humerus. It inserts on the humerus. | Infraspinatus muscle with the suprascapular nerve as well as teres minor muscle with the axillary nerve. |
It's origin is the subscapular fossa of the scapula. It medially rotates the humerus. It's insertion is on the humerus. | Subscapularis muscle with the upper and lower subscapular nerves (C5 and C6). |