Human Physiology: An Integrated Approach (8th Edition)
8th Edition
ISBN: 9780134605197
Author: Dee Unglaub Silverthorn
Publisher: PEARSON
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Chapter 8.5, Problem 29CC
Summary Introduction
To explain: The reason behind occasionally referring axon terminals as “biological transducers.”
Introduction: Axons are the terminal part of the neurons that play a crucial role in the transmission of signals across the synapse through the neural network. The proper functioning of axons is very important in continuous signal transmission.
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Define the term axon terminal?
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Chapter 8 Solutions
Human Physiology: An Integrated Approach (8th Edition)
Ch. 8.1 - Organize the following terms describing functional...Ch. 8.2 - Where do neurohormone-secreting neurons terminate?Ch. 8.2 - What is the difference between a nerve and a...Ch. 8.2 - Draw a chain of three neurons that synapse on one...Ch. 8.2 - What is the primary function of each of the...Ch. 8.2 - Name the two glial cell types that form myelin....Ch. 8.3 - Given the values in Table 8.2, use the Nernst...Ch. 8.3 - Would a cell with a resting membrane potential of...Ch. 8.3 - Would the cell membrane depolarize or...Ch. 8.3 - Match each ions movement with the type of graded...
Ch. 8.3 - Prob. 11CCCh. 8.3 - What is the difference between conductance and...Ch. 8.3 - If you put ouabain, an inhibitor of the Na+-K+...Ch. 8.3 - The pyrethrin insecticides, derived from...Ch. 8.3 - When Na+ channel gates are resetting, is the...Ch. 8.3 - A stimulating electrode placed halfway down an...Ch. 8.3 - Place the following neurons in order of their...Ch. 8.4 - Prob. 18CCCh. 8.4 - Prob. 19CCCh. 8.4 - Prob. 20CCCh. 8.4 - Prob. 21CCCh. 8.4 - Prob. 22CCCh. 8.4 - Classify the H+-neurotransmitter exchange as...Ch. 8.4 - Prob. 24CCCh. 8.4 - Prob. 25CCCh. 8.4 - Is Na+-dependent neurotransmitter reuptake...Ch. 8.5 - In Figure 8.24e, assume the postsynaptic neuron...Ch. 8.5 - In the graphs of Figure 8.24a, b, why doesnt the...Ch. 8.5 - Prob. 29CCCh. 8.5 - Prob. 30CCCh. 8 - List the three functional classes of neurons, and...Ch. 8 - Somatic motor neurons control __________, and...Ch. 8 - Prob. 3RQCh. 8 - Prob. 4RQCh. 8 - Prob. 5RQCh. 8 - Prob. 6RQCh. 8 - Axonal transport refers to the (a) release of...Ch. 8 - Match the numbers of the appropriate...Ch. 8 - Arrange the following events in the proper...Ch. 8 - List the four major types of ion channels found in...Ch. 8 - Prob. 11RQCh. 8 - An action potential is (circle all correct...Ch. 8 - Choose from the following ions to fill in the...Ch. 8 - What is the myelin sheath?Ch. 8 - List two factors that enhance conduction speed.Ch. 8 - Prob. 16RQCh. 8 - Draw and label a graph of an action potential....Ch. 8 - Prob. 18RQCh. 8 - Prob. 19RQCh. 8 - Create a map showing the organization of the...Ch. 8 - Prob. 21RQCh. 8 - Prob. 22RQCh. 8 - Prob. 23RQCh. 8 - Prob. 24RQCh. 8 - The presence of myelin allows an axon to (choose...Ch. 8 - Define, compare, and contrast the following...Ch. 8 - Prob. 27RQCh. 8 - Prob. 28RQCh. 8 - Prob. 29RQCh. 8 - Prob. 30RQCh. 8 - An unmyelinated axon has a much greater...Ch. 8 - The GHK equation is sometimes abbreviated to...Ch. 8 - In each of the following scenarios, will an action...
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- Explain in few sentences !! how a neuron can repair itself. What increases the likelihood of repair; what decreases the likelihood of repair? If repair is not possible, what other options are possible to innervate the effector organ?arrow_forwardMany neurons have only a single axon, but many terminals at the end of the axon. How does this end structure of the axon support its function?arrow_forwardWhat is the role of Axon?arrow_forward
- Why are voltage-gated channels important?arrow_forwardwhat happens to the conduction velocity of an axon that is isometrically twice as big as another axon ?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_forward
- Which component of the neuron sends action potentials away from the cell body?arrow_forwardWhy does a given type of neurotransmitter affect onlycertain types of cells? How can a neurotransmitterstimulate one type of cell but inhibit another type?arrow_forwardWhy are impulses transmitted more quickly down a myelinated axon than down an unmyelinated axon?arrow_forward
- Define the following terms: neuron, axon, dendrite, myelin sheath, afferent neuron, efferent neuron, association neuron.arrow_forwardAxons have diameters of _________ and do not _______. 0.4µm to 1mm, contain microtubules 100-100 µm, contain sodium channels 100-100 µm, contain calcium channels 0.4µm to 1mm, taperarrow_forwardA neurotoxin was delivered to a patient that prevented sodium channels from opening at the axon level. How does this affect a neuron's ability to communicate to other neurons? Explain in terms of action potential conductance, and neurotransmitter exocytosis at the axon terminal.arrow_forward
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