HING: ELECTRICAL IMPULSES IN NEURONS 1. Depolarization A. a cell whose internal environment has an electrical charge equal to its external environment _2. Action potential B. the process of a cell becoming positively charged C. the process of a cell becoming negatively charged D. an electrochemical change in the potential across a membrane that causes an electrical _3. Threshold signal to travel along that membrane E. the ability of a cell to respond to a stimulus F. an electrical voltage difference across a neural membrane of an unstimulated cell in which the internal environment is more negative than the external environment _4. Repolarization 5. Relative refractory period G. the lowest voltage reached by a depolarizing neuron that can cause an action potential to OCcur 6. Absolute refractory period H. the influx of this ion causes depolarization I. the efflux of this ion causes depolarization J. the influx of this ion causes repolarization K. the efflux of this ion causes repolarization L. the time when a very strong stimulus cannot initiate a 2ND action potential in an excited neuron M. the time when a larger-than-normal stimulus can initiate a 2ND action potential in a stimulated 7. Resting membrane potential 8. Continuous conduction neuron 9. Saltatory conduction N. the leaping propagation of an impulse across the nodes of Ranvier due to the uneven distribution of voltage-gated channels O. the unbroken propagation of an impulse across an axon as a result of depolarization- repolarization sequences next to one another P. a phenomenon in which the following happens: If a neuron can depolarize a little - beneath threshold, it will not generate any action potential. But if it reaches a certain level of depolarization, it will generate a full action potential. 10. Potassium 11. Sodium 12. All-or-none 3. Excitability
HING: ELECTRICAL IMPULSES IN NEURONS 1. Depolarization A. a cell whose internal environment has an electrical charge equal to its external environment _2. Action potential B. the process of a cell becoming positively charged C. the process of a cell becoming negatively charged D. an electrochemical change in the potential across a membrane that causes an electrical _3. Threshold signal to travel along that membrane E. the ability of a cell to respond to a stimulus F. an electrical voltage difference across a neural membrane of an unstimulated cell in which the internal environment is more negative than the external environment _4. Repolarization 5. Relative refractory period G. the lowest voltage reached by a depolarizing neuron that can cause an action potential to OCcur 6. Absolute refractory period H. the influx of this ion causes depolarization I. the efflux of this ion causes depolarization J. the influx of this ion causes repolarization K. the efflux of this ion causes repolarization L. the time when a very strong stimulus cannot initiate a 2ND action potential in an excited neuron M. the time when a larger-than-normal stimulus can initiate a 2ND action potential in a stimulated 7. Resting membrane potential 8. Continuous conduction neuron 9. Saltatory conduction N. the leaping propagation of an impulse across the nodes of Ranvier due to the uneven distribution of voltage-gated channels O. the unbroken propagation of an impulse across an axon as a result of depolarization- repolarization sequences next to one another P. a phenomenon in which the following happens: If a neuron can depolarize a little - beneath threshold, it will not generate any action potential. But if it reaches a certain level of depolarization, it will generate a full action potential. 10. Potassium 11. Sodium 12. All-or-none 3. Excitability
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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