Anatomy and Physiology 141 Exam II November 6, Name Student Number

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1 Anatomy and Physiology 141 Exam II November 6, 2014 Name Student Number 1. In regards to the gross anatomy of muscle, which of the following is NOT TRUE? a. Perimysium is more superficial than the epimysium b. Epimysium is composed of loose connective tissue c. Endomysium surrounds individual muscle cells d. Deep fascia binds multiple muscles into functional groups e. A & B 2. Calcium is stored by which of the following muscle cells components? a. T tubules b. Sarcolemma c. Sarcoplasmic reticulum d. Myofilaments e. Neuromuscular junction 3. In regard to the anatomy of a sarcomere, which of the following is TRUE? a. Z discs are only present when muscles are in the relaxed state b. The H zone includes actin and myosin c. The A band shortens during contraction d. Small regions of the I band persist after the muscle is fully contracted 4. In regards to the bones of the face, which of the following is NOT TRUE? a. The mandibular condyle articulates with the temporal bone b. The orbital plate of the sphenoid greater wing articulates with the lacrimal bone c. The alla of the vomer bone articulates with the ventral surface of the sphenoid bone d. The frontal process of the zygomatic bone forms part of the lateral edge of the eye orbit 5. Of the following, which immediately follows the binding of ATP myosin? a. Ca2+ binds troponin b. Myosin-ATPase is actived c. Cross-bridges between actin and myosin break d. Myosin goes into the low energy state

2 6. In regards to a synovial joint, which of the following is NOT TRUE? a. The synovial membrane includes two layers b. The stability of a synovial joint is determined by the shape of the articulating bone ends c. Bursa and tendon sheets are fluid-filled sacs found in synovial joints d. Menisci between opposing bone ends absorb force when two articulating bones are compressed together e. B & D 7. Which of the following can stop the molecular events that occur during muscle contraction? a. Enzymatic degradation of acetylcholine b. Binding of acetylcholine to its receptors in the neuromuscular junction c. Removal of troponin from tropomyosin d. Removal of calcium from the sarcoplasm e. All but C 8. Of the following, which is a graded muscle response that occurs during supra=threshold stimulation? a. Recruitment b. Temporal summation c. Tetanus d. Treppe e. C and D 9. In regards to the lower appendage, which of the following is NOT TRUE? a. The distal end of the fibula articulates with the tibia and the talus b. The tibial tuberosity is inferior to the inter-tubercular crest c. The linea aspera is on the posterior surface of the femur d. The greater trochanter is the insertion point for the adductor muscles of the thigh e. A & B 10. Which of the following is NOT TRUE for a lever where effort is applied at point in between the fulcrum and the load? a. The lever may provide mechanical advantage b. Most muscles have this type of lever c. The lever is classified as a second class lever d. A & B 11. In regard to types of angular movement, which of the following is NOT TRUE? a. Only the foot can evert b. Only the upper appendage can circumduct c. Only the forearm can supinate d. Only the thumb can oppose e. A, B & C

3 12. In regard to the muscles of facial expression, which of the following is TRUE? a. The galea aponeurotica is both an insertion and origin for epicranius muscle b. The origin of the corrugator supercillii is the maxilla c. Orbicularis oculi has an origin on the mandible d. Levator labii inferioris inserts into the skin of the upper lip e. A & B 13. In regards to the bones of the wrist and hand, which of the following is NOT TRUE? a. The trapezoid is the most lateral carpal in the distal row b. The pisiform articulates with the fifth metacarpal c. The schaphoid articulates with the lunate d. A & B e. A, B & C 14. Of the following, which is NOT a characteristic of the abdominal muscles? a. When activated individually, the rectus abdominis laterally flex the lumbar region of vertebral column b. Both the external and internal oblique muscles insert onto the linea alba c. The internal oblique is more superficial than the transverse abdominis d. The transverse abdominis and internal obliques have origins on the ribs 15. In regards to the coxal joint, which of the following is NOT TRUE? femur a. The coxal joint permits multi-axial movement b. The acetabulum labrum is comprised of fibrocartilage c. The dimension of the opening of the acetabulum is greater those of the head of the d. The coxal joint more stable than the glenoid joint Use the following information to answer Question 16. I. All suprahyoid muscles elevate the hyoid II. All infrahyoid muscles have origins that are inferior to the hyoid III. The omohyoid has an origin on the scapula IV. The sternohyoid depresses the larynx V. The mylohyoid has an origin on the inner margin of the mandible 16. Which of the above statements is NOT TRUE? a. II & III b. II & IV c. II, III & V d. II & V e. V only

4 17. In regards to the structure of vertebrae, which of the following is TRUE? a. Transverse processes are only found on thoracic vertebrae b. All vertebrae have superior articulating surface c. Transverse foramen are unique to cervical vertebrae d. Only the 5 th cervical vertebra has a dens 18. In regards to the muscles that move the scapula, which of the following is NOT TRUE? a. The trapezius has more than one insertion b. The serratus anterior protracts the scapula c. The pectoralis minor inserts on the coronoid process d. The rhomboideus adducts the scapula e. B & D 19. All of the following are characteristics of the femur EXCEPT: a. The intertrochanteric crest runs between the lesser and greater trochanters b. The gluteal tuberosity is located on the posterior surface of the femoral shaft c. The lateral condyle of the femur articulates with the proximal end of the fibula d. The femur articulates with the lunate surface of the acetabulum Use the following information to answer Question 20. I. The origins of the deltoid are the same as the insertions of the trapezius II. The suprspinatus is an abductor of the arm III. The latissimus dorsi extends the arm IV. The pectoralis major is the prime mover of arm flexion V. The subscapularis has its origin on the anterior surface of the scapula 20. Which of the above statements is TRUE? a. I only b. I & II c. I, II & V d. II, III & V e. All of the above are TRUE 21. In regards to the bones of the arm and forearm, which of the following is NOT TRUE? a. The medial epicondyle is on the side the humerus where the capitulum is located b. The olecranon process forms part of the trochlear notch c. The radial tuberosity is on the proximal end of the radius d. The distal end of the ulna articulates with the radius

5 22. In regards to the muscles of the anterior compartment of the arm, which of the following is TRUE? a. The long and short heads of the biceps brachii have the same insertion b. The biceps brachii and brachialis have the same insertion c. All anterior compartment muscles flex the elbow joint d. A & C e. A, B & C 23. In regards to muscles of the anterior forearm which of the following is TRUE? a. The extension is the primary action of these muscles b. The muscles of the deep compartment move the wrist c. Superficial and intermediate compartment muscles may have the same insertions d. Superficial muscles insert primarily on metacarpals 24. In regards to the lower appendage, which of the following is NOT TRUE? a. The distal end of the fibula forms the medial malleolus b. The articulation between the fibula and tibia is classified as syndesmosic c. The lesser trochanter is located on the medial surface of the femur d. The patella articulates with the anterior surface of the distal end of the femur 25. All of the following are true about the hamstring muscles EXCEPT: a. All hamstring muscles have insertions that are superior to the origins b. All hamstring muscles extend the thigh, flex the knee and rotate the leg c. All hamstring muscles have an origin on the isheal tuberosity d. The short head of biceps femoris extends the thigh 26. All of the following bones contribute to the eye orbit EXCEPT: a. Sphenoid b. Lacrimal c. Nasal d. Frontal e. Zygomatic 27. In regards to the muscles that adduct the thigh, which of the following is NOT TRUE? a. The pectineus is most superior b. The adductor longus is inferior to the adductor magnus c. All of the adductors have origins on the coxal bones d. The gracilis has the most inferior insertion e. B & D

6 28. During which of the following phases of a muscle twitch do cytoplasmic concentrations of Ca 2+ decrease? a. Latent phase b. Contraction phase c. Relaxation phase d. A & B 29. In regards to muscles of the leg, which of the following is TRUE? a. The flexor digitorum longus plantar flexes the foot b. The gastrocnemius originates on the tibial shaft c. The extensor hallucis plantar flexes the foot d. The extensor digitorum is an assistant extensor of the knee Use the following table to answers Question Iliopsaos 5 Sartorius 2 Gracilis 6 Semimembranous 3 Pectineus 7 Tibialis anterior 4 Rectus femoris 8 Plantaris 30. Of the following muscles, which have origins on the coxal bones and flex the knee? a. 1, 2, 4 & 6 b. 2, 5 & 6 c. 2, 5, 6 & 8 d. 2 & 6 e. 5 & 6