LAB MANUAL:MCKINLEY'S ANATOMY & PHYSIOL
2nd Edition
ISBN: 9781260484991
Author: McKinley
Publisher: MCG
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Question
Chapter 12.7, Problem 18WDYL
Summary Introduction
To determine:
The role of ions, phospholipid bilayer and the plasma membrane channels in neurons relative to the concepts of current, voltage and resistance.
Concept introduction:
A neuron is a basic functional unit of the nervous system and is the specialized cells of the nervous system that makes a complex network for the transmission of messages. A neuron is made up of a cell body, nerve fibers: dendrites and an axon in its structure.
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What is the role of ions, the phospholipid bilayer, and plasma membrane channels in neurons relative to the concepts of current, voltage, and resistance?
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Chapter 12 Solutions
LAB MANUAL:MCKINLEY'S ANATOMY & PHYSIOL
Ch. 12.1 - Prob. 1WDYLCh. 12.1 - What are the two primary functional divisions of...Ch. 12.2 - Prob. 3WDYLCh. 12.2 - Prob. 4WDYLCh. 12.2 - Prob. 5WDYLCh. 12.2 - Prob. 6WDYLCh. 12.2 - Prob. 7WDYLCh. 12.2 - What are the three connective tissue wrappings in...Ch. 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. 12.9 - Prob. 29WDYLCh. 12.10 - Prob. 30WDYLCh. 12.10 - Prob. 31WDYLCh. 12.11 - Prob. 32WDYLCh. 12.11 - Prob. 33WDYLCh. 12 - _____ 1. The cell body of a neuron does all of the...Ch. 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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- Conformational 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_forwardWhat is the typical resting membrane potential of a neuron?arrow_forwardWhat are the roles of membrane fluidity in neuron function? What are the roles of conformational changes in proteins and amplification in neuron function?arrow_forward
- Neurons, particularly those in the brain, receive multiple excitatory and inhibitory signals. What is the name of the extension of the neuron at which such signals are received? How does the neuron integrate these signals to determine whether or not to generate an action potential?arrow_forwardHow do depolarize, repolarize, and hyperpolarize describe the direction of changes in the membrane potential relative to the resting potential in an excitable cell?arrow_forwardWhat is resting membrane potential close to and why?arrow_forward
- When a neuron opens voltage-gated Na+ channels, what happens to the membrane potential?arrow_forwardHow much of a change in the membrane potential is necessary for the summation of postsynaptic potentials to result in an action potential being generated?arrow_forwardHow does the voltage sensor of a voltage-gated ion channel work?arrow_forward
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