LSC ANATOMY & PHYSIOLOGY CONNECT ACCESS
4th Edition
ISBN: 9781264929290
Author: McKinley
Publisher: MCG CUSTOM
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Question
Chapter 12.9, Problem 28WDYL
Summary Introduction
To explain:
How frequency of action potential differs from the velocity of action potential propagation.
Concept introduction:
The unequal distribution of positive and negative charge across the cell membrane results in membrane potential of a cell. When the membrane potential of an axon in a specific location rises and falls, it causes a series of electrical response or action potential. Action potential helps in the communication between cells.
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Explain how frequency of action potentials differs from the velocity of an action potential propagation.
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Chapter 12 Solutions
LSC ANATOMY & PHYSIOLOGY CONNECT ACCESS
Ch. 12.1 - Prob. 1WDYLCh. 12.1 - Prob. 2WDYLCh. 12.1 - Prob. 3WDYLCh. 12.2 - Prob. 4WDYLCh. 12.2 - Prob. 5WDYLCh. 12.2 - Prob. 6WDYLCh. 12.2 - Prob. 7WDYLCh. 12.2 - Prob. 8WDYLCh. 12.3 - Prob. 9WDYLCh. 12.4 - If a person has a brain tumor, is it more likely...
Ch. 12.4 - Prob. 11WDYLCh. 12.4 - Prob. 12WDYLCh. 12.4 - Prob. 13WDYLCh. 12.5 - Prob. 14WDYLCh. 12.5 - Prob. 15WDYLCh. 12.6 - Prob. 16WDYLCh. 12.6 - Prob. 17WDYLCh. 12.7 - Prob. 18WDYLCh. 12.7 - Prob. 19WDYLCh. 12.7 - Prob. 20WDYLCh. 12.8 - How are EPSP and IPSP graded potentials...Ch. 12.8 - Prob. 22WDYLCh. 12.8 - How does depolarization and repolarization occur...Ch. 12.8 - Prob. 24WDYLCh. 12.8 - Prob. 25WDYLCh. 12.9 - Prob. 26WDYLCh. 12.9 - Prob. 27WDYLCh. 12.9 - Prob. 28WDYLCh. 12.10 - Prob. 29WDYLCh. 12.10 - Prob. 30WDYLCh. 12.10 - Prob. 31WDYLCh. 12.11 - Prob. 32WDYLCh. 12.11 - Prob. 33WDYLCh. 12 - Prob. 1DYKBCh. 12 - Prob. 2DYKBCh. 12 - Prob. 3DYKBCh. 12 - Prob. 4DYKBCh. 12 - Prob. 5DYKBCh. 12 - Prob. 6DYKBCh. 12 - _____ 7. An action potential is generated when...Ch. 12 - Prob. 8DYKBCh. 12 - Prob. 9DYKBCh. 12 - Prob. 10DYKBCh. 12 - What are the four structural types of neurons? How...Ch. 12 - Prob. 12DYKBCh. 12 - How does myelination differ between the CNS and...Ch. 12 - Describe the procedure by which a PNS axon may...Ch. 12 - Prob. 15DYKBCh. 12 - Prob. 16DYKBCh. 12 - Explain summation of EPSPs and IPSPs and the...Ch. 12 - Graph and explain the events associated with an...Ch. 12 - Prob. 19DYKBCh. 12 - Prob. 20DYKBCh. 12 - Prob. 1CALCh. 12 - Prob. 2CALCh. 12 - Prob. 3CALCh. 12 - Prob. 4CALCh. 12 - Sarah wants to call her new friend Julie and needs...Ch. 12 - Over a period of 6 to 9 months, Marianne began to...Ch. 12 - Prob. 2CSLCh. 12 - Prob. 3CSL
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- Draw and label an action potential, indicating the ion movements responsible for the rising phase and the falling phase.arrow_forwardDiagram an Action potential: an action potential graph showing the 4 steps of an action potential AND what is happening to the sodium voltage-gated channels and voltage-gated potassium channels at each steparrow_forwardb) Draw a diagram indicating how the ion concentrations will change during the depolarization phase of an action potential.arrow_forward
- Name the three phases of an action potential. Describe for each the underlying molecular basis and the ion involved. Why is the term voltage-gated channel applied to Na+ channels involved in the generation of an action potential?arrow_forwarddescribe the two factors affecting action potential speed.arrow_forwardAn increase in the magnitude of depolarization by a graded potential will increase the threshold potential increase the duration of an action potential increase the frequency of action potentials two of the abovearrow_forward
- Describe the sequence of activation of ion channels leading to action potential propagation.arrow_forwardExplain action potential generation in terms of cell potential, ionic concentrations, movement of ions across the membrane, gates, etc.arrow_forwardCompare graded and action potentialarrow_forward
- Explain how an action potential is generated, propagated, and terminated in skeletal muscles (hint: begin from nerve impulse to local and wave depolarization to repolarization and the restoration of ionic conditions).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_forwardIdentify the important physiological structures involved in action potential; then, explain in detail how one nerve action potential causes one muscle action potential.arrow_forward
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