Ex2Fall08Key - Examination II VPHY 3100 Elements of...

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Examination II VPHY 3100 Elements of Physiology October 13th, 2008 1:25 - 2:15 p.m. Multiple Choice (2.5 points each) FOR EACH QUESTION, CHOOSE THE SINGLE BEST ANSWER. 1. The autonomic and somatic motor systems are different in that: A. somatic motor neurons innervate viscera whereas autonomic motor neurons innervate skeletal muscle. B. for a given effector organ, innervation on the somatic side is achieved via two efferent neurons whereas innervation on the autonomic side is achieved via one efferent neuron. C. only autonomic motor neuron cell bodies can lie within ganglia. D. only somatic motor neuron cell bodies can lie within the spinal cord. E. only on the somatic side does efferent information exit the spinal cord via the ventral roots. 2. Which of the following is not a typical response of the parasympathetic division of the autonomic nervous system? A. Bronchiolar constriction B. Decreased heart rate C. Decreased contractility of the heart D. Vasodilation of skeletal muscle blood vessels E. None of the above are typical responses of the parasympathetic division 3. The splanchnic nerves, paravertebral ganglia, and collateral ganglia are all part of the: A. parasympathetic division of the autonomic nervous system. B. sympathetic division of the autonomic nervous system. C. parasympathetic division of the central nervous system. D. sympathetic division of the central nervous system. E. somatic motor system. 4. Preganglionic fibers of the parasympathetic division are ___________________ and typically synapse with postganglionic neurons in ____________________, A. noradrenergic; terminal ganglia B. cholinergic; terminal ganglia C. cholinergic; prevertebral ganglia D. cholinergic; paravertebral ganglia E. noradrenergic; paravertebral ganglia 5. β -receptors and muscarinic receptors are similar in that: A. they are activated by binding of acetylcholine. B. they are activated by binding of norepinephrine. C. they are ligand-gated ion channels. D. calcium is the intracellular second messenger generated downstream of receptor activation. E. they are G-protein-coupled receptors. 6. Vagal innervation of the heart activates __________________, which ultimately slows the heart rate via the _________________. A. muscarinic receptors; activation of adenylate cyclase B. β -receptors; activation of adenylate cyclase 1
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C. β -receptors; opening of K + channels D. muscarinic receptors; opening of K + channels E. α -receptors; activation of adenylate cyclase 7. Which of the following is not a fundamental attribute encoded by each of our sensory systems? A. The type of stimulus B. The strength of a stimulus C. The timing of a stimulus D. The location of a stimulus E. The temperature of a stimulus 8. _________________ adapt more quickly to stimuli than do ________________. A.
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This note was uploaded on 01/17/2010 for the course VPHY 3100 taught by Professor W during the Spring '05 term at University of Georgia Athens.

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Ex2Fall08Key - Examination II VPHY 3100 Elements of...

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