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A neuron must reach threshold to fire an action potential. In this context, threshold refers to which event?     a. voltage at which damage occurs to the membrane because of the electrical charge     b. the voltage at which potassium ions begin to flow in and out of the cell     c. the voltage at which voltage-gated sodium channels open     d. the voltage at which the neuron can no longer produce an action potential   According to studies in developing rodents, testosterone treatment causes detectable changes in:     a. the sex region Y gene     b. the thalamus     c. the hypothalamus     d. alpha-fetoprotein

A neuron must reach threshold to fire an action potential. In this context, threshold refers to which event?     a. voltage at which damage occurs to the membrane because of the electrical charge     b. the voltage at which potassium ions begin to flow in and out of the cell     c. the voltage at which voltage-gated sodium channels open     d. the voltage at which the neuron can no longer produce an action potential   According to studies in developing rodents, testosterone treatment causes detectable changes in:     a. the sex region Y gene     b. the thalamus     c. the hypothalamus     d. alpha-fetoprotein

Human Anatomy & Physiology (11th Edition)
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. A neuron must reach threshold to fire an action potential. In this context, threshold refers to which event?
       
    a. voltage at which damage occurs to the membrane because of the electrical charge
       
    b. the voltage at which potassium ions begin to flow in and out of the cell
       
    c. the voltage at which voltage-gated sodium channels open
       
    d. the voltage at which the neuron can no longer produce an action potential

 

  1. According to studies in developing rodents, testosterone treatment causes detectable changes in:
       
    a. the sex region Y gene
       
    b. the thalamus
       
    c. the hypothalamus
       
    d. alpha-fetoprotein
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