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BIO 131 Lab exam 8- 100 Percent Grade

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1. Which of the following statements is TRUE regarding the muscle pictured above specified by the lab instructor? a. It is an accessory muscle in breathing b. It elevates the scapula c. It protra... cts the scapula d. It is innervated by the accessory nerve e. a. and. c. are true statements f. b. and d. are true statements f 2. Identify the muscle and innervation in the picture above, specified by the lab instructor. (Dissection of the anterior aspect of the fetal pig) The muscle is the pectoralis major and innvervates at both the lateral and medial pectoral nerve 3. Which of the following statements is FALSE regarding the muscle pictured (highlighted in blue and specified by the arrow)? a. It is innervated by the lower scapular nerve b. It abducts the humerus c. It flexes the humerus d. It extends the humerus e. All of the above statements are true f. All of the above statements are false e 4. a. b. c. d. Your patient has sustained a rotator cuff injury. It is determined that the axillary nerve was damaged as a result. Given this information, which of the muscles pictured above would you expect to be affected? Picture B The tres minor would be affected which is innervated by the axillary nerve 5. Infraspinatus: a. Internally rotates the humerus b. prevents upward slippage of the humerus during abduction c. innervated by the axillary nerve d. prevents upward slippage of the humerus when the arm is at rest e. a. and b. f. c and d. f -4.0 points Answer Key 1. Which of the following statements is TRUE regarding the muscle pictured above specified by the lab instructor? a. It is an accessory muscle in breathing b. It elevates the scapula c. It protracts the scapula d. It is innervated by the accessory nerve e. a. and. c. are true statements f. b. and d. are true statements f. b. and d. are true statements 2. Identify the muscle and innervation in the picture above, specified by the lab instructor. (Dissection of the anterior aspect of the fetal pig) Pectoralis Major; medial and lateral pectoral nerve 3. Which of the following statements is FALSE regarding the muscle pictured (highlighted in blue and specified by the arrow)? a. It is innervated by the lower scapular nerve b. It abducts the humerus c. It flexes the humerus d. It extends the humerus e. All of the above statements are true f. All of the above statements are false [Show More]

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