Essentials of Human Anatomy & Physiology & Modified Mastering A&P with Pearson eText w/ ValuePack Access Card
1st Edition
ISBN: 9780133902341
Author: Elaine N. Marieb
Publisher: PEARSON
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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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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 events of neuron depolarization and repolarization
Describe the different types of ion channels on a neuron.
Chapter 7 Solutions
Essentials of Human Anatomy & Physiology & Modified Mastering A&P with Pearson eText w/ ValuePack Access Card
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_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_forwardDescribe how gating of Na+ and K+ in the axon membrane results in the production of an action potential.arrow_forward
- Describe the steps including the roll of ion terminals in a neuronal action potentialarrow_forwardDescribe the role of the axon hillock in generating action potentials.arrow_forwardDescribe the events of an action potential in terms of ions and gates or channels beginning with the generation of a local potential through the re-establishment of resting membrane potential.arrow_forward
- Describe 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_forwardConstruct a personalized flow chart and show the summary of the events involved for the propagation of action potential along the neuron. Highlight the role being played by ions.arrow_forwardDescribe how depolarization occurs along an unmyelinated neuronal axonarrow_forward
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