Anatomy & Physiology (6th Edition)
Anatomy & Physiology (6th Edition)
6th Edition
ISBN: 9780134156415
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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Chapter 11, Problem 6MC

Chemical synapses are characterized by all of the following except (a) the release of neurotransmitter by the presynaptic membranes, (b) postsynaptic membranes bearing receptors that bind neurotransmitter, (c) ions flowing through protein channels from the presynaptic to the postsynaptic neuron, (d) a fluid-filled gap separating the neurons.

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Which statement is true regarding the neuron synapse? B) binging of a neurotransmitter on the postsynaptic neuron membrane can generate an action potential in that neuron C) the binding of a neurotransmitter always causes an excitatory effect on that cell, never inhibitory D) the presynaptic and pastsynaptic neuron membranes are not physically separated
Which of the following statements concerning synapses is FALSE? O A) Modulation of synaptic strength can be presynaptic of postsynaptic B) High frequency stimulation in the presynaptic neuron often leads to DECREASED neurotransmitter release O C) Modulation of synaptic strength can either be short term, lasting seconds, or long term, lasting as long as a lifetime. D) Agonists are drugs that mimic neurotransmitters and antagonists are drugs that block the action of neurotransmitters O E) Certain drugs prevent the reuptake of neurotransmitter from the synapse
Describe how an action potential in a presynaptic neuron causes a) an excitatory postsynaptic potential; or b) an inhibitory postsynaptic potential in a postsynaptic neuron

Chapter 11 Solutions

Anatomy & Physiology (6th Edition)

Ch. 11.5 - What determines the size of a graded potential?Ch. 11.6 - Which is bigger, a graded potential or an action...Ch. 11.6 - An action potential does not get smaller as it...Ch. 11.6 - Why does a myelinated axon conduct action...Ch. 11.6 - If an axon receives two stimuli close together in...Ch. 11.7 - Events at a chemical synapse usually involve...Ch. 11.7 - What structure joins two neurons at an electrical...Ch. 11.8 - Which ions flow through chemically gated channels...Ch. 11.8 - Prob. 19CYUCh. 11.9 - Prob. 20CYUCh. 11.9 - Why is cyclic AMP called a second messenger?Ch. 11.10 - Which types of neural circuits would give a...Ch. 11.10 - Prob. 23CYUCh. 11.10 - What pattern of neural processing occurs when we...Ch. 11 - Which of the following structures is not part of...Ch. 11 - Match the names of the supporting cells found in...Ch. 11 - Assume that an EPSP is being generated on the...Ch. 11 - Prob. 3MCCh. 11 - The velocity of nerve impulse conduction is...Ch. 11 - Chemical synapses are characterized by all of the...Ch. 11 - Biogenic amine neurotransmitters include all but...Ch. 11 - Prob. 8MCCh. 11 - Inhibition of acetylcholinesterase by poisoning...Ch. 11 - The anatomical region of a multipolar neuron where...Ch. 11 - An IPSP is inhibitory because (a) it...Ch. 11 - Identify the neuronal circuits described by...Ch. 11 - Explain both the anatomical and functional...Ch. 11 - (a) Describe the composition and function of the...Ch. 11 - (a) What is myelin? (b) How does the myelination...Ch. 11 - (a) Contrast unipolar, bipolar, and multipolar...Ch. 11 - What is the polarized membrane state? How is it...Ch. 11 - Describe the events that must occur to generate an...Ch. 11 - Prob. 19SAQCh. 11 - (a) Explain the difference between an EPSP and an...Ch. 11 - Since at any moment a neuron is likely to have...Ch. 11 - The effects of neurotransmitter binding are very...Ch. 11 - Prob. 23SAQCh. 11 - Prob. 24SAQCh. 11 - Elaine Sawyer, 35, was on her way to the local...Ch. 11 - Elaine Sawyer, 35, was on her way to the local...Ch. 11 - Elaine Sawyer, 35, was on her way to the local...Ch. 11 - Elaine Sawyer, 35, was on her way to the local...Ch. 11 - Elaine Sawyer, 35, was on her way to the local...
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