ANATOMY AND PHYSIOLOGY: AN INTEGRATIVE A
4th Edition
ISBN: 9781265949440
Author: McKinley
Publisher: MCG
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Chapter 15, Problem 13DYKB
Summary Introduction
To contrast and compare:
The parasympathetic and sympathetic postganglionic axons. Also, examine the length of the axon, myelination and the neurotransmitter involved.
Concept introduction:
ANS consists of both, the sensory and motor components. The motor component of the ANS is divided further into the sympathetic division and the parasympathetic division. Myelination means the presence of myelin sheath in the axon of a neuron.
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Compare and contrast the postganglionic axons of the parasympathetic and sympathetic divisions. Examine the axon length, myelination (or lack thereof), and the neurotransmitter used.
In the sympathetic division of the autonomic
nervous system:
Select one:
The ratio between the number of
postganglionic and preganglionic neurons
is small.
A single preganglionic neuron usually
synapses with a single postganglionic
neuron.
An important functional characteristic is
convergence of the preganglionic fibers.
Preganglionic fibers are usually much longer
than the postganglionic fibers.
Activity of the neurons tends to have a more
generalized and widespread effect on the
body.
Compare and contrast the basic anatomy of the parasympathetic and sympathetic systems, includingcentral nervous system locations, ganglia locations, pre- and post-ganglionic neuron relative lengths,and ganglionic and effector neurotransmitters.
Chapter 15 Solutions
ANATOMY AND PHYSIOLOGY: AN INTEGRATIVE A
Ch. 15.1 - What criterion is used to organize the nervous...Ch. 15.1 - Prob. 2WDYLCh. 15.1 - What CNS structure is the integration and command...Ch. 15.2 - Prob. 4WDYLCh. 15.2 - Describe the general anatomic differences in the...Ch. 15.2 - Prob. 6WDYLCh. 15.3 - Which four cranial nerves have a parasympathetic...Ch. 15.3 - What organs are innervated by the pelvic...Ch. 15.4 - Prob. 9WDYLCh. 15.4 - Prob. 10WDYL
Ch. 15.4 - Prob. 11WDYLCh. 15.4 - In what ways does the adrenal medulla pathway help...Ch. 15.5 - Prob. 13WDYLCh. 15.5 - Prob. 14WDYLCh. 15.6 - Prob. 15WDYLCh. 15.6 - Prob. 16WDYLCh. 15.6 - Prob. 17WDYLCh. 15.6 - Prob. 18WDYLCh. 15.6 - Prob. 19WDYLCh. 15.7 - Prob. 20WDYLCh. 15.7 - Prob. 21WDYLCh. 15.7 - Prob. 22WDYLCh. 15.7 - What are the body structures innervated by the...Ch. 15.8 - Prob. 24WDYLCh. 15 - A splanchnic nerve in the sympathetic division of...Ch. 15 - Some parasympathetic preganglionic neuron cell...Ch. 15 - Prob. 3DYKBCh. 15 - Prob. 4DYKBCh. 15 - Sympathetic division preganglionic axons travel to...Ch. 15 - Prob. 6DYKBCh. 15 - Prob. 7DYKBCh. 15 - A sympathetic postganglionic axon is a. long and...Ch. 15 - Prob. 9DYKBCh. 15 - Prob. 10DYKBCh. 15 - Prob. 11DYKBCh. 15 - For the following ganglia, identify the location...Ch. 15 - Prob. 13DYKBCh. 15 - Prob. 14DYKBCh. 15 - Prob. 15DYKBCh. 15 - Prob. 16DYKBCh. 15 - Prob. 17DYKBCh. 15 - What may occur with the mass activation of the...Ch. 15 - Prob. 19DYKBCh. 15 - Prob. 20DYKBCh. 15 - Prob. 1CALCh. 15 - Arlene was in a heightened state of alertness well...Ch. 15 - George has hypertension (high blood pressure). His...Ch. 15 - Prob. 4CALCh. 15 - Prob. 5CALCh. 15 - Prob. 1CSLCh. 15 - When you were younger, your parents may have told...Ch. 15 - Prob. 3CSL
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- Which of the following could be used to describe Norepinephrine (NE)? Select all that apply. hormone neurotransmitter Secreted by most postganglionic parasympathetic fibers uses cholinergic receptors a beta blocker would decrease its activity Secreted by most postganglionic sympathetic fibers Next Droviousarrow_forwardDraw a graph of the autonomic system and identify the neurotransmitters and receptors such as dopamine,norephinephrine and etc. and where it binds to alpha and beta. please explain as well.arrow_forwardNervous system functions that directly employ acetylcholine neurotransmitters are referred to as cholinergic. Drugs that might be therapeutic in treating the symptoms of dopamine loss in Parkinson’s disease could include multiple choice 1 dopaminergic agonists and cholinergic antagonists. dopaminergic antagonists and cholinergic antagonists. dopaminergic antagonists and cholinergic agonists. dopaminergic agonists and cholinergic agonists. 2. From the information provided, drugs used to treat Parkinson’s disease symptoms will act at which location? multiple choice 2 The globus pallidus The substantia nigra The striatum 3. Which of the following might be therapeutic in the treatment of Parkinson’s disease symptoms? multiple choice 3 all of these choices listed may be therapeutic increasing dopamine receptor responsiveness monoamine oxidase inhibition increasing dopamine release decreasing dopamine…arrow_forward
- Classify the following characteristics to demonstrate your knowledge of differences between the sympathetic and parasympathetic divisions of the autonomic nervous system. Sympathetic Nervous System Most ganglia lie close to the spinal cord and form two chains of ganglia-one on each side of the spinal cord Increases intestinal motility and stimulates intestinal secretion Postganglionic axons are generally short Preganglionic axons are generally short Postganglionic axons release NE that binds to adrenergic receptors located on the effectors Decreases heart rate, contractility, and conduction velocity Ganglia lie within, or very close to, innervated organs Decreases intestinal motility and inhibits intestinal secretion Long preganglionic axons release ACh that binds to nicotinic receptors located within the ganglia Neurons leave the CNS from the thoracic and lumbar regions of the spinal cord Parasympathetic Nervous System Generalized activation is called the fight-or-flight response…arrow_forwardcompare and contrast the differences between the sympathetic and parasympathetic nervous systems. Use the following scenarios: Scenario 1: You are walking outside late at night and you hear something in the bushes as you approach your home. Which system will dominate and what physiological changes will occur? Scenario 2: You have just finished a big dinner and now you are relaxing in your recliner to watch the big ball game. Which system will dominate and what physiological changes will occur? Be sure to at least include what happens to heart rate, blood pressure, and digestion. You may include other physiological variables as well. "Not a homework assignment"arrow_forwardFor which of the following systems is the neurotransmitter acetylcholine released by neurons at the target tissue? true only for the sympathetic division true only for the parasympathetic division true for both divisions false for both divisionsarrow_forward
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