Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN: 9781305389892
Author: Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher: Cengage Learning
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Chapter 39.2, Problem 2SB
Summary Introduction
To review:
The way in which the myelin sheath affects the neuronal conduction.
Introduction:
The neurons generate electrical impulses and transmit the signals in the form of the action potential. The action potential is transmitted either through the chemical signals or through the electrical signals. The electrical signals are conducted faster as compared to the chemical signals. Various factors influence the speed of electrical impulses like myelin sheath and length of nerves fibers.
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Chapter 39 Solutions
Biology: The Dynamic Science (MindTap Course List)
Ch. 39.1 - Prob. 1SBCh. 39.1 - Prob. 2SBCh. 39.1 - Prob. 3SBCh. 39.2 - Prob. 1SBCh. 39.2 - Prob. 2SBCh. 39.3 - Prob. 1SBCh. 39.3 - Prob. 2SBCh. 39.4 - Prob. 1SBCh. 39 - Prob. 1TYKCh. 39 - Prob. 2TYK
Ch. 39 - An example of a synapse could be the site where:...Ch. 39 - Prob. 4TYKCh. 39 - The major role of the Na+/K+ pump is to: a. cause...Ch. 39 - In the propagation of a nerve impulse: a. the...Ch. 39 - Which of the following does not contribute to...Ch. 39 - Which of the following statements best describes...Ch. 39 - Prob. 9TYKCh. 39 - Prob. 10TYKCh. 39 - Prob. 11TYKCh. 39 - Prob. 12TYKCh. 39 - Prob. 13TYKCh. 39 - Prob. 14TYKCh. 39 - Prob. 15TYKCh. 39 - Prob. 16TYKCh. 39 - You learned in this chapter that Na+/K+ active...Ch. 39 - Prob. 2ITDCh. 39 - Prob. 3ITD
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- Why is Myelin made up of Lipids and protein macromolecules?arrow_forwardWhich of the following glial cells provide myelin in the central nervous system?arrow_forwarda) How does E allow faster transmission of signals? b) What would happen if G has a lack of Calcium? c) Most neurons have the style of junction (chemical) shown in the diagram, rather than gap (electrical) junctions. Why does this make sense?arrow_forward
- Which two types of neuroglia form insulating coverings called myelin sheaths?arrow_forwardWhat is the role of ions, the phospholipid bilayer, and plasma membrane channels in neurons relative to the concepts of current, voltage, and resistance?arrow_forwardIn the central nervous system there may be many synaptic inputs on a postsynaptic neurons. How does the postsynaptic neuron respond to the many presynaptic inputs?arrow_forward
- What are the functions of these neuron structures: dendrites, axon, synaptic vesicles, and neurofibrils?arrow_forwardWhat does the dendrite do and where is it located on a neuron? What is a soma? What do we call the soma? What does the axon do and where is it located on the neuron? What is the responsibility of the myelin sheath?arrow_forwardHow do neurotransmitters get transported within a single neuron?arrow_forward
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