Fundamentals of Anatomy & Physiology, Custom edition for Houston Community College Northwest, Volume 1, Includes student access code card
18th Edition
ISBN: 9781323627983
Author: Martini, Nath, Bartholomew
Publisher: PEARSON
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Chapter 12, Problem 22CP
Summary Introduction
To determine:
The pathway that will transmit the impulses more rapidly
Introduction:
In a chemical synapse, the signal from the axon terminal of a neuron is carried by neurotransmitters to the receptors of the postsynaptic cell. The speed of signal transmission is slow in chemical synapse as compared to electrical synapse.
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Chapter 12 Solutions
Fundamentals of Anatomy & Physiology, Custom edition for Houston Community College Northwest, Volume 1, Includes student access code card
Ch. 12 - Describe the three anatomical divisions of the...Ch. 12 - Describe the two functional divisions of the...Ch. 12 - Identify the two components of the efferent...Ch. 12 - Prob. 4CPCh. 12 - Name the structural components of a typical...Ch. 12 - Classify neurons according to their structure.Ch. 12 - Classify neurons according to their function.Ch. 12 - Prob. 8CPCh. 12 - Prob. 9CPCh. 12 - Prob. 10CP
Ch. 12 - Prob. 11CPCh. 12 - Prob. 12CPCh. 12 - Prob. 13CPCh. 12 - What effect would decreasing the concentration of...Ch. 12 - Define action potential.Ch. 12 - Identify the steps involved in the generation and...Ch. 12 - Prob. 17CPCh. 12 - Which of the following axons is myelinated: one...Ch. 12 - Prob. 19CPCh. 12 - Prob. 20CPCh. 12 - What effect would blocking voltage-gated calcium...Ch. 12 - Prob. 22CPCh. 12 - Prob. 23CPCh. 12 - Prob. 24CPCh. 12 - Prob. 25CPCh. 12 - Prob. 26CPCh. 12 - Prob. 27CPCh. 12 - LEVEL 1 Reviewing Facts and Terms 1. Label the...Ch. 12 - Prob. 2RQCh. 12 - Prob. 3RQCh. 12 - Prob. 4RQCh. 12 - The neural cells responsible for the analysis of...Ch. 12 - Depolarization of a neuron plasma membrane will...Ch. 12 - Prob. 7RQCh. 12 - Receptors that bind acetylcholine at the...Ch. 12 - What are the major components of (a) the central...Ch. 12 - Prob. 10RQCh. 12 - Prob. 11RQCh. 12 - If the resting membrane potential of a neuron is...Ch. 12 - Prob. 13RQCh. 12 - What is the difference between anterograde flow...Ch. 12 - What is the functional difference among chemically...Ch. 12 - State the all-or-none principle cf action...Ch. 12 - Prob. 17RQCh. 12 - Prob. 18RQCh. 12 - What are the structural and functional differences...Ch. 12 - Describe the events that occur during nerve...Ch. 12 - Prob. 21RQCh. 12 - Prob. 22RQCh. 12 - Prob. 23RQCh. 12 - In multiple sclerosis, there is intermittent and...Ch. 12 - Prob. 25RQCh. 12 - Which cells of the CNS are targeted by the polio...Ch. 12 - Prob. 2CC
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- Which cells myelinate the axons of central and peripheral nervous system neurons? Why is myelination important? Note several consequences if demyelination was to occur.arrow_forwardNeurons, 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_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
- In the nervous system, there are both electrical synapses, which pass electrical signals quickly and directly between cells, and chemical synapse, which use a chemical message. What are the advantage and disadvantages of each?arrow_forwardWhy is that if A, B, and D neurons were all activated, an action potential in neuron C would not occur. But if A and D were activated, an action potential in C would occur?arrow_forwardCells of the Nervous System is divided into which two parts?arrow_forward
- What are the main functions of the sensory-somatic nervous system?arrow_forwardWhen an inhibitory neurotransmitter such as GABA opens cl– channels in the plasma membrane of a postsynaptic neuron, why does this make it harder for an excitatory neurotransmitter to excite the neuron?arrow_forwardWhat is the difference between a nerve, such as that found in an arm or leg, and a neuron?arrow_forward
- What is the function of the sodium-potassium pump during the nerve impulse transmission? Which is the ratio of Na-K with inside/outside the cell?arrow_forwardWhat is the Difference between Autonomic and Somatic Nervous System?arrow_forwardMultiple sclerosis is a disease in which the immune system attacks and destroys the myelin sheath surrounding nerve cells. What effect would you expect the loss of myelin to have onthe speed of nerve impulses?arrow_forward
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