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Muscles of upper limb made easy to rememberFull description
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PRACTICE QUIZ ANSWERS - UPPER LIMB, AXILLA AND BRACHIAL PLEXUS
1. __D__The axillary artery becomes the brachial artery at the: A. lower border of the pectoralis major muscle B. upper border of the teres minor muscle C.lower border of the pectoralis minor muscle D. lower border of the teres major muscle E. lower border of the latissimus dorsi 2. __B__Branches of the thoracoacromial artery (trunk) include all of the following EXCEPT the: A. deltoid B. subscapular C. pectoral D. clavicular E. acromial 3. __E__Which of the following structures pass through the quadrilateral space? A. circumflex scapular artery and axillary nerve B. dorsal scapular nerve and artery C. radial nerve and profunda brachii artery D. upper subscapular nerve and subscapular artery E. axillary nerve and posterior circumflex humeral artery 4. __B__The nerve which innervates the infraspinatus muscle arises from which part of the brachial plexus? A. roots B. upper trunk C. lateral cord D. posterior cord
E. medial cord 5. __E__Damage to which of the following structures of the brachial plexus causes claw hand? A. ulnar nerve B. middle trunk C. lower trunk D. A and B E. A and C 6. __A__The brachioradialis muscle is innervated by the A. radial nerve B. anterior interosseus nerve C. ulnar nerve D. musculocutaneous nerve E. median nerve 7. __C__Which of the following nerves arises directly from the roots of the brachial plexus? A. thoracodorsal nerve B. nerve to subclavius C. dorsal scapular nerve D. suprascapular nerve E. upper subscapular nerve 8. __A__Damage to the upper trunk of the brachial plexus results in: A. Erb’s palsy (Erb-Duchenne paralysis) B. claw hand C. ape hand D. wrist drop E. inability to flex forearm 9. __E__Which of the following muscles is/are innervated (at least in part) by the lower subscapular nerve?
A. teres minor B. teres major C. infraspinatus D. subscapularis E. B and D 10. __D__Which of the following statements is FALSE concerning the brachial plexus? A. The posterior divisions of all three trunks unite to form the posterior cord. B. The anterior divisions of the upper and middle trunks unite to form the lateral cord. C. The middle trunk is formed by fibers from C7. D. Three named nerves arise directly from the lower trunk. E. Two named nerves arise directly from the upper trunk.
