Human Physiology: From Cells to Systems (MindTap Course List)
9th Edition
ISBN: 9781285866932
Author: Lauralee Sherwood
Publisher: Cengage Learning
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Question
Chapter 4, Problem 13RE
Summary Introduction
To fill:
The correct term for the given blanks.
Introduction:
An action potential can be defined as a quick rise and a subsequent decrease in voltage or membrane potential through a cellular membrane with a distinguishing pattern. Synapse is a junction present between the two neurons.
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______Synaptic potentiation ____ _________results when a presynaptic cell is stimulated repeatedly or continuously, resulting in an __________ release of neurotransmitter.__________ __________results when another neuron __________ the release of an excitatory neurotransmitter from a presynaptic cell.
A/An _____ synapse is formed when a presynaptic neuron synapses with the cell body of a postsynaptic neuron
At a given synapse, the _____ neuron has neurotransmitter receptors.
Chapter 4 Solutions
Human Physiology: From Cells to Systems (MindTap Course List)
Ch. 4.1 - Name the two types of excitable tissue.Ch. 4.1 - Prob. 2CYUCh. 4.1 - State the factor responsible for triggering gate...Ch. 4.2 - Prob. 1CYUCh. 4.2 - Prob. 2CYUCh. 4.2 - Prob. 3CYUCh. 4.3 - Draw and label an action potential, indicating the...Ch. 4.3 - Prob. 2CYUCh. 4.3 - Prob. 3CYUCh. 4.3 - Prob. 4CYU
Ch. 4.4 - Explain why synapses operate only in the direction...Ch. 4.4 - Prob. 2CYUCh. 4.4 - Prob. 3CYUCh. 4.4 - Prob. 4CYUCh. 4.5 - Define target cell.Ch. 4.5 - Distinguish among the four types of extracellular...Ch. 4.5 - Outline the three general means by which binding...Ch. 4.5 - Prob. 4CYUCh. 4.6 - Distinguish between cytokines and eicosanoids.Ch. 4.6 - Discuss the roles of phospholipase A2,...Ch. 4.6 - Prob. 3CYUCh. 4.7 - Prob. 1CYUCh. 4.7 - Prob. 2CYUCh. 4.7 - Prob. 3CYUCh. 4.8 - Prob. 1CYUCh. 4.8 - Prob. 2CYUCh. 4 - Conformational changes in channel proteins brought...Ch. 4 - Prob. 2RECh. 4 - Prob. 3RECh. 4 - Prob. 4RECh. 4 - Second-messenger systems ultimately bring about...Ch. 4 - Each steroidogenic organ has all the enzymes...Ch. 4 - Prob. 7RECh. 4 - Prob. 8RECh. 4 - Prob. 9RECh. 4 - Prob. 10RECh. 4 - Prob. 11RECh. 4 - Prob. 12RECh. 4 - Prob. 13RECh. 4 - A common membrane-bound intermediary between the...Ch. 4 - Prob. 15RECh. 4 - Prob. 16RECh. 4 - Prob. 17RECh. 4 - Prob. 18RECh. 4 - Define the following terms: polarization,...Ch. 4 - Prob. 2UCCh. 4 - Prob. 3UCCh. 4 - Prob. 4UCCh. 4 - Compare the four kinds of gated channels in terms...Ch. 4 - Prob. 6UCCh. 4 - Prob. 7UCCh. 4 - Prob. 8UCCh. 4 - Prob. 9UCCh. 4 - Define signal transduction.Ch. 4 - Compare the tyrosine kinase and JAK/STAT pathways.Ch. 4 - Prob. 12UCCh. 4 - Prob. 13UCCh. 4 - Describe how arachidonic acid is converted into...Ch. 4 - Prob. 15UCCh. 4 - Prob. 16UCCh. 4 - Explain how the cascading effect of hormonal...Ch. 4 - Prob. 18UCCh. 4 - Answer the following questions regarding...Ch. 4 - Prob. 2SQECh. 4 - Prob. 3SQECh. 4 - Prob. 1ACRCh. 4 - The rate at which the Na+K+ pump operates is not...Ch. 4 - Which of the following would occur if a neuron...Ch. 4 - Prob. 3TAHLCh. 4 - Assume presynaptic excitatory neuron A terminates...Ch. 4 - Prob. 5TAHL
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- Assume presynaptic excitatory neuron A terminates on a postsynaptic cell near the axon hillock and presynaptic excitatory neuron B terminates on the same postsynaptic cell on a dendrite located on the side of the cell body opposite the axon hillock. Explain why rapid firing of presynaptic neuron A could bring the postsynaptic neuron to threshold through temporal summation, thus initiating an action potential, whereas firing of presynaptic neuron B at the same frequency and the same magnitude of EPSPs may not bring the postsynaptic neuron to threshold.arrow_forwardA neuron responds to adequate stimulation with _______, a type of self-propagating signal.arrow_forwardWhen action potentials arrive at a synapse between a neuron and another cell, they stimulate the release of molecules of a ________ that diffuse over to that cell.arrow_forward
- What is a synapse? Explain the difference between an excitatory and an inhibitory synapse.arrow_forwardBecause the long axons of neurons look like electrical wires, and both neurons and electrical wires conduct electricity, it is tempting to equate the two. Compare and contrast the functioning of axons and electrical wires in terms of their structure and the nature of the electrical signals they conduct. Please include references.arrow_forwardContrast the postsynaptic mechanism of excitatory and inhibtory synapsesarrow_forward
- In 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_forwardPresynaptic inhibition is characterized by all the following, except :-a- increased Cl- influx into presynaptic terminalsb- increased Ca ++ influx into presynaptic terminalsc- decreased response of postsynaptic receptorsd- hyperpolarization of presynaptic terminalsarrow_forwardwhich one of the following statements is incorrect? a. temporal summation occurs when a single synaptic input is activated twice in succession, with the second postsynaptic potential occurring before the first postsynaptic potential is over. b. blocking voltage-gated k* channels in the presynaptic membrane of a typical chemical synapse is likely to reduce the amount of neurotransmitter released in response to a single action potential in the presynaptic axon. c. in the optic tectum of the hunting rattlesnake, spatial summation is used to combine inputs from visual and thermoreceptive layers in order to make a decision whether to strike at a mouse-like object. d. a single type of neurotransmitter can have different postsynaptic actions depending on the type of receptor to which it binds.arrow_forward
- Some postsynaptic synapses are called silent synapses due to the lack of AMPA receptors. Why do those synapses not have a synaptic response at the resting membrane potential? Explain under what conditions you would still be able to detect a postsynaptic response from those silent synapses.arrow_forwardThe correlation between neurons can explain the basis of the synaptic modification, that is, how much they can connect to each other or if they are not synchronized, how much they can lose or weaken their connections. • Draw a picture of an excitatory synapse such as glutamatergic with its receptors between the pre- and postsynaptic neuron. • Briefly explain what mechanisms involve neuronal plasticity and why synapses are enhanced or weakened.arrow_forwardWhat word is used to describe the summation of excitatory and inhibitory stimuli by a neuron? synapse impulse integration action potentialarrow_forward
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