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EBK ESSENTIALS OF HUMAN ANATOMY & PHYSI
11th Edition
ISBN: 9780133987010
Author: Marieb
Publisher: VST
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Chapter 7, Problem 19SAE
Summary Introduction
To review:
The way in which sodium ions are able to enter the axon of a neuron to cause depolarization.
Introduction:
Depolarization is the phenomenon observed when there is a change in the electric charge within the cell. The functioning, communication, and physiology of a cell and an organism depend upon the activity of depolarization.
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Students have asked these similar questions
Describe how an action potential is generated in a neuron. Include channels that are open/closed during this process and be sure to include terms such as depolarization, threshold, hyperpolarization, and repolarization.
Describe the different types of ion channels on a neuron.
describe the events of neuron depolarization and repolarization
Chapter 7 Solutions
EBK ESSENTIALS OF HUMAN ANATOMY & PHYSI
Ch. 7 - Prob. 1MCCh. 7 - Prob. 2MCCh. 7 - The innermost delicate meningeal layer is the a....Ch. 7 - Prob. 4MCCh. 7 - 5. The pineal gland is located in...Ch. 7 - Prob. 6MCCh. 7 - 7. The spinal cord feature associated with the...Ch. 7 - Prob. 8MCCh. 7 - Prob. 9MCCh. 7 - Prob. 10MC
Ch. 7 - More than one choice may apply. Which of the...Ch. 7 - Prob. 12MCCh. 7 - Prob. 13SAECh. 7 - Prob. 14SAECh. 7 - Prob. 15SAECh. 7 - Identify and briefly describe the role of...Ch. 7 - Briefly explain how nerve impulses are initiated...Ch. 7 - Prob. 18SAECh. 7 - Prob. 19SAECh. 7 - Prob. 20SAECh. 7 - Prob. 21SAECh. 7 - 22. What is the function of the thalamus? The...Ch. 7 - Describe how the brain is protected by bone,...Ch. 7 - Prob. 24SAECh. 7 - Prob. 25SAECh. 7 - Prob. 26SAECh. 7 - Prob. 27SAECh. 7 - Prob. 28SAECh. 7 - Prob. 29SAECh. 7 - Prob. 30SAECh. 7 - Identify the neurotransmitters used in each of the...Ch. 7 - Prob. 32SAECh. 7 - Prob. 33SAECh. 7 - 34. How does a Schwann cell help insulate a nerve...Ch. 7 - Prob. 35SAECh. 7 - Prob. 36SAECh. 7 - Prob. 37CAQCh. 7 - 38. Joseph, a man in his early 70s, was having...Ch. 7 - Prob. 39CAQCh. 7 - Prob. 40CAQCh. 7 - Latifah is in the first trimester of her second...Ch. 7 - 42. Mrs. Chen, a new mother, brings her infant to...Ch. 7 - Three-year-old Brittany is sobbing that her right...Ch. 7 - 44. Mr. Harrison is an 82-year-old bedridden...Ch. 7 - Clarence, an elderly man with a history of TIAs,...Ch. 7 - Prob. 46CAQCh. 7 - Jason is the star of his hometown ice hockey team....Ch. 7 - Prob. 48CAQCh. 7 - Prob. 49CAQCh. 7 - As the aroma of freshly brewed coffee drifted by...
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- Draw and label an action potential, indicating the ion movements responsible for the rising phase and the falling phase.arrow_forwardDefine an action potential.arrow_forwardConformational changes in channel proteins brought about by voltage changes are responsible for opening and closing Na+ and K+ gates during the generation of an action potential. (True or false?)arrow_forward
- Describe the changes that occur during the depolarizationand repolarization phases of an action potential.arrow_forwardbriefly explain the distribution of ions in an axon during depolarization and repolarization.arrow_forwardDescribe how the permeability of the axon membrane to Na+ and K+ is regulated and how changes in permeability to these ions affect the membrane potential.arrow_forward
- Describe how gating of Na+ and K+ in the axon membrane results in the production of an action potential.arrow_forwardDescribe the steps including the roll of ion terminals in a neuronal action potentialarrow_forwardDescribe the events involved in the generation and propagation of an action potential.arrow_forward
- Explain the distribution of ions in an axon during repolarizationarrow_forwardIdentify the stages involved during the changes in membrane potential of the neuron represented in the graph above. Number: Answer Answer Answer Answer Stage: Hyperpolarization Repolarization Resting State Depolarizationarrow_forwardDescribe the conditions of a neuron at rest in terms of the RMP; concentration gradients for Na+, K+, Cl– along the entire neuron and Ca2+ at the synaptic knob; and the state of the gated channels.arrow_forward
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