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5.The serratus anterior muscle A.forms a scapulothoracic articulation with the clavicle B.is innervated by a branch of the posterior cord of the brachial plexus C.elevates the scapula off the thoracic wall D.laterally rotates the scapula during abduction of the arm above 90 degrees E.originates from the anterior surface of the humerus 6.Which of the following muscles extends the humerus? 7.This muscle is innervated by the dorsal scapular nerve, retracts and medially rotates the scapula, and is attached to the medial border of the scapula below the base of the scapular spine. 8.Which of the following arteries typically branches off the third part of the axillary artery (i.e., distal to the pectoralis minor muscle)? 9.During abduction of the arm from 0 to 180 degrees, which is the CORRECT sequence of muscle contractions? A.Serratus anterior àDeltoid àSupraspinatus B.Deltoid àSupraspinatus àSerratus anterior C.Supraspinatus àSerratus anterior àDeltoid D.Supraspinatus àDeltoid àSerratus anterior E.Deltoid àSerratus anterior àSupraspinatus
CHA 101 MT I Exam W’2018 Page 4 *** It is unlawful to reproduce (hand copy, photocopy, photograph, scan, etc.), post electronically, or otherwise distribute this exam, or any part of this exam, without the expressed written permission of the authors/editors: Douglas S. Gross, MD, PhD & Jennifer Plasse, MS(c) *** 10.The arrows indicate the two structures often inflamed when the subacromial space is narrow. They are the _____ and the _____. 11.This patient is pulling a rubber stretch band from position 1 to position 2 in order to strengthen the _____ muscle.
CHA 101 MT I Exam W’2018 Page 5 *** It is unlawful to reproduce (hand copy, photocopy, photograph, scan, etc.), post electronically, or otherwise distribute this exam, or any part