A&P 101 LAB 6 EXAM 6 MUSCULAR SYSTEM

A&P 101 LAB 6 EXAM 6 MUSCULAR SYSTEM A&P 101 LAB 6 EXAM 6 MUSCULAR SYSTEM. Question 1 2 / 2 pts 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 Correct! f. b. and d. are true statements Question 2 2 / 2 pts Identify the muscle and innervation in the picture above, specified by the lab instructor. (Dissection of the anterior aspect of the fetal pig) Your Answer: Pectoralis major innervated by medial and lateral pectoral nerve Pectoralis Major; medial and lateral pectoral nerve Question 3 2 / 2 pts Which of the following statements is TRUE regarding the middle portion of the muscle pictured (highlighted in blue and specified by the arrow)? a. It is innervated by the axillary nerve b. It abducts the humerus c. It flexes the humerus d. It extends the humerus Correct! e. a. and b. are true statements f. a. and c. are true statements g. a. and d. are true statements Question 4 2 / 2 pts 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? a. Correct! b. The teres minor is the only rotator cuff muscle innervated by the axillary nerve. c. d. Question 5 2 / 2 pts Infraspinatus: a. Internally rotates the humerus b. prevents upward slippage of the humerus during abduction c. innervated by the axillary nerve Correct! d. prevents upward slippage of the humerus when the arm is at rest e. a. and b. f. c and d. Question 6 2 / 2 pts Biceps Brachii: (mark all that apply) Correct! Primary action is supination of the forearm Primary action is flexion of the elbow Correct! Innervated by the musculocutaneous nerve Innervated by the radial nerve Question 7 1.33 / 2 pts Triceps Brachii: (mark all that apply) Correct! Extends elbow Correct Answer Adducts humerus Correct! Innervated by radial nerve Innervated by axillary nerve Question 8 2 / 2 pts Flexor Carpi Ulnaris: (mark all that apply) Correct! Flexes the wrist Innervated by the radial nerve Correct! Ulnar deviation of the wrist Innervated by the median nerve Question 9 2 / 2 pts Extensor Carpi Ulnaris: (mark all that apply) Correct! Extends the wrist Extends the fifth digit Correct! Innervated by the posterior interosseous nerve Correct! Located on the dorsal forearm Question 10 2 / 2 pts Abductor Pollicis Longus: (mark all that apply) Correct! Abducts the 1st digit Extends the wrist Correct! Innervated by the posterior interosseous nerve Located on the ventral forearm Question 11 2 / 2 pts List the 3 gluteal muscles in order from superficial to deep. Your Answer: gluteus maximus, gluteus medius,gluteus minimus gluteus maximus, gluteus medius, gluteus minimus Question 12 1.33 / 2 pts Tensor Fasciae Latea: (mark all that apply) Hip adduction Correct Answer lateral rotation of the tibia medial rotation of the tibia Correct! Attaches to the IT tract Correct! Innervated by the superior gluteal nerve Question 13 1.5 / 2 pts Adductor Magnus: (mark all that apply) Correct! Hip adduction Correct Answer Hip medial rotation Correct! Innervated by the obturator nerve Correct! Innervated by the tibial nerve Question 14 2 / 2 pts a. b. c. Which of the muscles pictured above acts to flex the hip joint? Correct! a. the rectus femoris b. c. Question 15 2 / 2 pts Identify the muscle pictured above (highlighted in blue) and give its nervous innervation. Your Answer: sartorius muscle femoral nerve Sartorius; femoral nerve Question 16 2.5 / 2.5 pts Identify the muscle in the picture above, specified by the lab instructor, and list its actions. Your Answer: biceps femoris knee flexion and hip extension Biceps Femoris; knee flexion and hip extension Question 17 2.5 / 2.5 pts Identify the muscle and innervation in the picture above, specified by the lab instructor. (Dissection of the lower leg) Your Answer: tibialis anterior peroneal nerve Tibialis Anterior; deep fibular or peroneal nerve Question 18 1.25 / 2.5 pts Extensor Digitorum Longus: (mark all that apply) Correct! Extends toes Plantarflexes ankle Correct Answer Innervated by peroneal nerve Question 19 2.5 / 2.5 pts Gastrocnemius: (mark all that apply) Correct! Plantarflexes ankle Correct! Flexes the knee Correct! Innervated by tibial nerve Correct! Superficial muscle Deep muscle