Answered: 3.single choice Which part of the…

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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3.single choice Which part of the nervous reflex is fatigable. A. synapse B. sensory receptors C. afferent neuron D. efferent neuron E. effector 4.multiple choice The factors that influence the AP conduction velocity on nerve fiber include A. thickness of the myelin shealth. B. myelinated or not C. diameter of the fiber D. temperature E. strength of the stimulation 5.single choice Which property could be destroyed by the local anesthetics procaine (普鲁卡因). A. physiological integrity B. structure integrity C. insulation D. infatigable 6.single choice Which of the following is not the chemical mediated signal transmission. A. gap junction B. neuro-muscular junction. C. hormone binding with the receptor on the target. D. classical synapse E. varicosity 7.single choice In the nerve reflex, the latency from the stimulation to the response is mainly dependent on A. the number of synapses in the central nervous system. B. the action potential conduction velocity at the afferent and efferent nerve fiber C. the strength and property of stimulation. D. the sensitivity of the sensory receptors. E. the sensitivity of the effector. 8.single choice Both afferent collateral inhibition and recurrent inhibition are A. postsynatic inhhibition B. collateral inhibition C. reciprocal inhibition D. presynaptic inhibition E. feedforward inhibition 9.single choice Afferent collateral inhibition is mediated by A. excitation of the inhibitiory interneuron. B. membrane depolarization. C. decrease of the excitatory neurotransmitter released from the presynaptic terminal. D. exitatory neurotransmitter is catabolized. E. excitation of the excitatory interneuron. 10.single choice Which ion is coupled with the release of neurotransmitter? A. Ca2+ B. Na+ C. K+ D. Mg2+ E. Cl-

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