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Unformatted text preview: C. anterior division of lower trunk only D. posterior divisions of all 3 trunks 7. The ulnar nerve innervates all interosseous muscles of the hand A. True B. False 8 A patient is unable to extend the elbow or wrist, but can flex the elbow, wrist, and fingers normally. If a lesion is identified in the brachial plexus, it would likely be at the: A. medial cord B. lateral cord C. posterior cord D. upper trunk E. lower trunk 9. Which muscle innervated by the musculocutaneous nerve can flex the elbow? A. brachioradialis B. coracobrachialis C. biceps brachii D more than one of the above 10.The deep palmar arch is an extension of the ulnar artery A. True B. False Answers 1. A 2. D. 3. D 4. C 5. B 6. A 7. A 8. C 9. C 10.B...
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- Fall '10
- Human Anatomy, Brachial plexus, Muscles of the upper limb, True B. False, A. True B., Lateral cord