Chapter 10 Muscular System Histology and Physiology Quiz

Chapter 10 Muscular System Histology and Physiology Quiz -...

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1. During contraction, muscles shorten _________________ , and lengthen_________________ . (p. 276) forcefully, forcefully forcefully, passively passively, forcefully passively, passively 2. Muscle cells that are cylindrical and branched, each with a single, centrally located nucleus, and that contract spontaneously are (p. 277) cardiac muscle. skeletal muscle. smooth muscle. unknown: not enough characteristics to determine the type of muscle 3. _________________ surrounds each muscle fasciculus, whereas _________________ surrounds each muscle fiber. (p. 277) epimysium, perimysium perimysium, endomysium epimysium, endomysium endomysium, perimysium endomysium, epimysium 4. Which of these layers of a skeletal muscle is the same as the fascia? (p. 277) sarcolemma perimysium fasciculus (bundle) epimysium endomysium 5. Each muscle cell is a (p. 278) fasciculus. sarcomere. fiber. myofibril. myofilament.
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6. Most of the interior of muscle fibers is filled with (p. 278) fasciculi. myofibrils. nuclei. sarcoplasm. sarcoplasmic reticulum. 7. Which of these units contains overlapping actin and myosin myofilaments? (p. 278) A band H zone I band M line Z disk 8. Which of these units contains the Z disk? (p. 278) A band H zone I band M line 9. Which of these is NOT a part of the actin myofilament? (p. 278) actin cisternae tropomyosin troponin 10. Which of these locations has the ability to break down ATP, which releases energy? (p. 278) globular actin molecule head of myosin molecule troponin molecule tropomyosin molecule troponin-tropomyosin complex 11. Troponin binds to (p. 278)
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actin. calcium ions. tropomyosin. all of these 12. The enlarged areas of the sarcoplasmic reticulum near the T tubules are the (p. 280) sarcolemma. sarcomeres. terminal cisternae. troponin molecules. tropomyosin molecules. 13. In the neuromuscular junction, the axon is also called the (p. 283) postsynaptic membrane. presynaptic terminal. synaptic cleft. synaptic vesicle. 14. Which of these regions shorten(s) during skeletal muscle contraction? (p. 276-286) A band I band H zone both a and b both b and c 15. Given these events: 1. Acetylcholine is released from synaptic vesicles 2. An action potential reaches the presynaptic terminal 3. Ca 2+ ions diffuse into the cell 4. Acetylcholine is secreted from the presynaptic terminal by exocytosis - Choose the
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This note was uploaded on 01/04/2012 for the course BIO 324 taught by Professor Crawford during the Spring '09 term at Western Kentucky University.

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Chapter 10 Muscular System Histology and Physiology Quiz -...

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