FUND.A+P/MAST A+P/HUM.A+P.MAN.CAT LAB
11th Edition
ISBN: 9780135225400
Author: MARTINI/MARIEB
Publisher: PEARSON
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Textbook Question
Chapter 16, Problem 11CP
Name the two types of cholinergic receptors on the postsynaptic membranes of parasympathetic neurons.
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Match the following statements to the correct neurotransmitter of the autonomic nervous system. Select "Both" if the statement is true of both neurotransmitters.
Secreted by cholinergic fibers.
Receptors for this neurotransmitter may cause either excitatory or inhibitory responses.
Bind(s) to adrenergic receptors.
Receptors for this neurotransmitter are found on all autonomic postganglionic neurons.
This neurotransmitter can increase heart rate.
ANSWER OPTIONS: Acetylcholine or Norepinephrine? Both?
In the parasympathetic branch of the autonomic nervous system, there are two cholinergic synapses
(synapses mediated by acetylcholine) on the way to the target tissue. The first synapse is in the
autonomic ganglion (from the "preganglionic neuron"), and is always mediated by nicotinic
acetylcholine receptors (NACHRS). The second synapse (from the "postganglionic neuron") is on the
target cell, and is mediated by muscarinic acetylcholine receptors (mAChRs).
B. One of these synapses produces a long-lasting hyperpolarization of its target cell. Which synapse,
and why?
In the parasympathetic branch of the autonomic nervous system, there are two cholinergic synapses
(synapses mediated by acetylcholine) on the way to the target tissue. The first synapse is in the
autonomic ganglion (from the "preganglionic neuron"), and is always mediated by nicotinic
acetylcholine receptors (NACHRS). The second synapse (from the "postganglionic neuron") is on the
target cell, and is mediated by muscarinic acetylcholine receptors (mAChRs).
A. Which of these synapses is expected to always produce a rapid depolarization of the
postsynaptic cell? Explain your answer.
Chapter 16 Solutions
FUND.A+P/MAST A+P/HUM.A+P.MAN.CAT LAB
Ch. 16 - Prob. 1CPCh. 16 - Prob. 2CPCh. 16 - Prob. 3CPCh. 16 - Prob. 4CPCh. 16 - Prob. 5CPCh. 16 - Prob. 6CPCh. 16 - Prob. 7CPCh. 16 - Prob. 8CPCh. 16 - Prob. 9CPCh. 16 - Prob. 10CP
Ch. 16 - Name the two types of cholinergic receptors on the...Ch. 16 - Prob. 12CPCh. 16 - Prob. 13CPCh. 16 - Prob. 14CPCh. 16 - Prob. 15CPCh. 16 - Prob. 16CPCh. 16 - Prob. 17CPCh. 16 - Prob. 18CPCh. 16 - Prob. 19CPCh. 16 - Prob. 20CPCh. 16 - Prob. 21CPCh. 16 - Prob. 22CPCh. 16 - Prob. 23CPCh. 16 - Prob. 24CPCh. 16 - Prob. 25CPCh. 16 - Prob. 26CPCh. 16 - Prob. 27CPCh. 16 - Prob. 28CPCh. 16 - Prob. 1RQCh. 16 - Prob. 2RQCh. 16 - Prob. 3RQCh. 16 - Prob. 4RQCh. 16 - Prob. 5RQCh. 16 - Prob. 6RQCh. 16 - Prob. 7RQCh. 16 - What are the components of a visceral reflex arc?Ch. 16 - Prob. 9RQCh. 16 - Prob. 10RQCh. 16 - Prob. 11RQCh. 16 - All preganglionic autonomic fibers release _____...Ch. 16 - Prob. 13RQCh. 16 - Prob. 14RQCh. 16 - Prob. 15RQCh. 16 - Prob. 16RQCh. 16 - Prob. 17RQCh. 16 - Prob. 18RQCh. 16 - Prob. 19RQCh. 16 - Prob. 20RQCh. 16 - Prob. 21RQCh. 16 - Prob. 22RQCh. 16 - Prob. 23RQCh. 16 - Prob. 24RQCh. 16 - Prob. 25RQCh. 16 - Prob. 26RQCh. 16 - Prob. 27RQCh. 16 - Prob. 28RQCh. 16 - Prob. 29RQCh. 16 - Prob. 30RQCh. 16 - Prob. 31RQCh. 16 - Prob. 1CCCh. 16 - Prob. 2CCCh. 16 - Prob. 3CC
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