Loose Leaf For Integrated Principles Of Zoology
18th Edition
ISBN: 9781260411140
Author: Cleveland P Hickman Jr. Emeritus, Susan L. Keen, David J Eisenhour Professor PhD, Allan Larson, Helen I'Anson Associate Professor of Biology
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 33, Problem 4RQ
What ionic and electrical changes occur during passage of an action potential along an axon?
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What ionic and electrical changes occur during passage of an action potential along an axon?
What are the two main factors that influence the conduction speed of an action potential along an axon?
How much of a change in the membrane potential is necessary for the summation of postsynaptic potentials to result in an action potential being generated?
Chapter 33 Solutions
Loose Leaf For Integrated Principles Of Zoology
Ch. 33 - Define the following terms: neuron, axon,...Ch. 33 - Glial cells far outnumber neurons and contribute...Ch. 33 - The concentration of potassium ions inside a nerve...Ch. 33 - What ionic and electrical changes occur during...Ch. 33 - Explain different ways in which invertebrates and...Ch. 33 - Why is the sodium-potassium pump indirectly...Ch. 33 - Prob. 7RQCh. 33 - Prob. 8RQCh. 33 - Prob. 9RQCh. 33 - Prob. 10RQ
Ch. 33 - Prob. 11RQCh. 33 - Prob. 12RQCh. 33 - Prob. 13RQCh. 33 - Prob. 14RQCh. 33 - Chemoreception in vertebrates and insects is...Ch. 33 - What is the vomeronasal organ and what activity...Ch. 33 - Explain how ultrasonic detectors of certain...Ch. 33 - Outline the place theory of pitch discrimination...Ch. 33 - Explain how the semicircular canals of the ear are...Ch. 33 - Contrast the structure and functioning of the...Ch. 33 - Explain what happens when light strikes a...Ch. 33 - Prob. 22RQCh. 33 - Prob. 1FFT
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- Why does an action potential move in an all-or-nothing fashion down the length of an axon without stopping?arrow_forwardWhat factors promote change in Vm (membrane potential) during an action potential?arrow_forwardWhat takes place during the repolarization and hyperpolarization phases of an action potential?arrow_forward
- What happens if a potassium channel opened before sodium channels during the action potential process?arrow_forwardWhat is a local current? How do local currents cause thepropagation of action potentials in unmyelinated axons?arrow_forwardStarting with the action of a neurotransmitter at the postsynaptic end of a neuron, what happens to generate an action potential to a second neuron?arrow_forward
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