Human Physiology: An Integrated Approach (8th Edition)
8th Edition
ISBN: 9780134605197
Author: Dee Unglaub Silverthorn
Publisher: PEARSON
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Textbook Question
Chapter 25.5, Problem 3CC
The active vasodilator nerves to the skin secrete ACh but are classified as sympathetic neurons. On what basis were they identified as sympathetic?
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Students have asked these similar questions
release of --------- onto skeletal muscle blood vessles result in ......
1. Acetylcholine, vasoconstriction
2.norepinephrine,vasoconstriction
3.Acetylcholine, vasolidation
4,norepinephrine, vasolifation
1.can you tell me why do we choose sympathetic instead of para symapthetic. make it short and clear.
2.If we say sympathetic why do we choose pregangolic with ACH ? how can I know?
3. explain how is alpha beta thing relate. How do you choose vasoconstriction vs vasolidation?
please teach me a trick. make it short and claer please. I get so confused
Anisha is preparing for a physiology test and she faces some difficulties in the topic of
peripheral nervous system. Help her to complete Tables 1 and 2 in your answer book.
Table 1 Comparison between somatic nervous system and autonomic nervous system
Characteristics
Effectors
General function
Somatic nervous system
Autonomic nervous system
Effects on target tissues
Number of neurons in the
efferent pathway
Table 2 Comparison between sympathetic division and parasympathetic division
Characteristic
Origin and site of outflow
Relative length of pre- and
postganglionic fibers
Neurotransmitter
Sympathetic division
Parasympathetic division
Physiological functions
Myelination
Receptors
Most tissues regulated by the autonomic nervous system receive both sympathetic and parasympathetic input from postganglionic neurons. Responses are typically local. In contrast, the adrenal medulla receives input only from the sympathetic division and only from preganglionic neurons, yet responses are observed throughout the body. Explain why.
Chapter 25 Solutions
Human Physiology: An Integrated Approach (8th Edition)
Ch. 25.2 - If venous PO2 decreases as exercise intensity...Ch. 25.3 - In Figure 25.8b, why does the line for mean blood...Ch. 25.5 - The active vasodilator nerves to the skin secrete...Ch. 25 - Name the two muscle compounds that store energy in...Ch. 25 - Prob. 2RQCh. 25 - Prob. 3RQCh. 25 - Prob. 4RQCh. 25 - Prob. 5RQCh. 25 - What is meant by the term oxygen deficit, and how...Ch. 25 - Prob. 7RQ
Ch. 25 - In endurance events, body temperature can reach...Ch. 25 - Prob. 9RQCh. 25 - Prob. 10RQCh. 25 - Prob. 11RQCh. 25 - Prob. 12RQCh. 25 - Match the following brain areas with the...Ch. 25 - Specify whether each of the following parameters...Ch. 25 - Why doesnt increased venous return during exercise...Ch. 25 - Diagram the three theories that explain why the...Ch. 25 - Prob. 17RQCh. 25 - Explain how exercise decreases blood glucose in...Ch. 25 - Prob. 19RQCh. 25 - Prob. 20RQCh. 25 - The following graph shows left ventricular...
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- In multiple sclerosis, nerve fibers in the CNS lose their myelin. Explain why this loss affects skeletal muscle function.arrow_forwardOne mechanism underlying the anesthesia is opening increase numbers of potassium leak channels. How/why would this mechanism cause anesthesia?arrow_forwardWhat is the muscarininc acetylcholine receptor? Where is it expressed?arrow_forward
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