wpr2e-072-ans

wpr2e-072-ans - Cadet _ Time of Departure _ DEPARTMENT OF...

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Cadet ________________________ Time of Departure __________ DEPARTMENT OF CHEMISTRY AND LIFE SCIENCE CH387, Human Physiology, AY07-2 Resources Permitted: None Written Partial Review 2 (E hour) TEXT: Germann & Stansfield, 22 March 2007 Principles of Human Available time: 55 minutes Physiology, 2 nd Edition SCOPE: Lessons 15-22 CHECK THIS EXAMINATION TO SEE THAT THERE ARE 8 PAGES, NOT INCLUDING THE COVER PAGE. INFORM THE INSTRUCTOR OF ANY INCOMPLETE OR MISSING PAGES. WRITE YOUR NAME ON THE TOP OF EACH SHEET. ANSWER ALL QUESTIONS. TOTAL WEIGHT: 200 POINTS DO NOT WRITE IN THIS SPACE: PART MAX VALUE CUT POINTS 1 140 2 60 TOTAL 200
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Cadet___________________________ PART 1 (140 Points) MULTIPLE CHOICE : (4 points each) 1. (2) The primary function of the autonomic nervous system is to a. regulate the function of effector organs to maintain homeostasis. b. control skeletal muscles. c. receive information from sensory receptors and transmit information to the thalamus. d. transmit pain messages to the brain. 2. (1) Contraction of skeletal muscle is stimulated by _______. a. afferent neurons b. motor neurons c. autonomic neurons d. sympathetic neurons 3. (3) What is the function of t tubules? a. They store calcium. b. They conduct action potentials from the sarcolemma to the interior of the muscle cell. c. Actin and myosin are synthesized here. d. They provide elasticity to the muscle. e. They hold the thick filaments to the Z line. 4. (1) End-plate potentials _______. a. are always a depolarization b. are always a hyperpolarization c. are action potentials d. are graded potentials 5. (1) What is the protein component of the thin filament that binds to calcium thereby initiating skeletal muscle contraction? a. troponin b. myosin c. tropomyosin d. titin CH387 Human Physiology WPR2 AY2004-2005 1
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Cadet___________________________ 6. (2) The purpose of dual innervation of the sympathetic and parasympathetic nervous systems is ________________. a. to cause a synergistic excitatory response b. to respond to multiple hormones c. to provide antagonistic signals d. all of the above 7. (1) Smooth muscle and cardiac muscle are both innervated by the ____________. a. somatic nervous system b. autonomic nervous system c. sensory nervous systems d. autorhythmic cells 8. (1) During skeletal muscle contraction, ______________________. a. thick filaments shorten b. thin filaments shorten c. sarcomeres shorten d. actin and myosin molecules shorten 9. (1) Which chemical serves as the signal that initiates the crossbridge cycle and hence, contraction of the muscle cell by binding to a contractile protein? a.
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This test prep was uploaded on 04/15/2008 for the course CH 387 taught by Professor Robert during the Fall '08 term at West Point.

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wpr2e-072-ans - Cadet _ Time of Departure _ DEPARTMENT OF...

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