Answered: 1..All of the following statements…

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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1..All of the following statements about initiation and transmission of action potentials in neurons are correct EXCEPT: a)The rate of transmission of an action potential is directly related to the diameter of the axon. b)Information about the intensity of a stimulus is conveyed by changes in the size of the action potential generated. c)The resting potential is maintained by differential ion permeabilities and the sodium-potassium pump. d)Once initiated, local depolarizations stimulate a moving wave of depolarization down the axon. e)A stimulus to the neuron can either depolarize or hyperpolarize the neuronal membran 2.. Neurotransmitters that affect a neuron's response to other neurotransmitters are called _______. 3.. The key substances that create an action potential are protein channels that move —- out of a cell and —-into a cell. 4.. A cell with a membrane potential of -80 milivolts is? 5.. A gland secreting its product is an example of the —- 6.. If the charge inside a cell goes from -70 milivolts to -50 milivolts that cell is _______ 7.. The binding of an exitatory neurotransmitter to receptors on the cell membrane of the postsynpatic cell causes ——to enter the cell. 8.. The cells of the nervous system include —-which conduct impulses and —-which provide support and fill in spaces. 9.. The gaps between Schwann cells are called? 10.. Which of the following type of neuroglia would you find within ganglia? Astrocytes Ependyma Microglia Oligodendrocyte Schwann cell None of the above 11..——neurons bring sensory information into the—- 12…———-neurons send motor siganls to ——-which can be either a muscle or a gland.

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