Anatomy & Physiology (6th Edition)
6th Edition
ISBN: 9780134156415
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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Textbook Question
Chapter 18.1, Problem 1CYU
Which branch of the autonomic nervous system innervates blood vessels? Which layer of the blood vessel wall do these nerves innervate? What are the effectors (cells that carry out the response)?
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Chapter 18 Solutions
Anatomy & Physiology (6th Edition)
Ch. 18.1 - Which branch of the autonomic nervous system...Ch. 18.1 - When vascular smooth muscle contracts, what...Ch. 18.2 - Name the type of artery that matches each...Ch. 18.3 - Prob. 4CYUCh. 18.4 - Prob. 5CYUCh. 18.4 - In the systemic circuit, which contains more...Ch. 18.5 - Prob. 7CYUCh. 18.6 - List three factors that determine resistance in a...Ch. 18.6 - Suppose vasoconstriction decreases the diameter of...Ch. 18.7 - Prob. 10CYU
Ch. 18.8 - Prob. 11CYUCh. 18.8 - The kidneys play an important role in maintaining...Ch. 18.8 - Your neighbor, Bob, calls you because he thinks he...Ch. 18.8 - Prob. 14CYUCh. 18.9 - Suppose you are in a bicycle race. What happens to...Ch. 18.9 - If many arterioles in your body dilated at once,...Ch. 18.10 - Prob. 17CYUCh. 18.11 - Prob. 18CYUCh. 18.11 - Prob. 19CYUCh. 18.11 - Prob. 20CYUCh. 18.11 - You are assessing the circulation in the leg of a...Ch. 18.11 - In what important way does the area drained by the...Ch. 18.11 - Prob. 23CYUCh. 18.11 - Prob. 24CYUCh. 18.11 - Name the leg veins that often become varicosed.Ch. 18 - Which statement does not accurately describe...Ch. 18 - Smooth muscle in the blood vessel wall (a) is...Ch. 18 - Peripheral resistance (a) is inversely...Ch. 18 - Which of the following can lead to decreased...Ch. 18 - Prob. 5MCCh. 18 - Prob. 6MCCh. 18 - The structure of a capillary wall differs from...Ch. 18 - Prob. 8MCCh. 18 - The myocardium receives its blood supply directly...Ch. 18 - Blood flow in the capillaries is steady despite...Ch. 18 - Prob. 11MCCh. 18 - Tracing the blood from the heart to the right...Ch. 18 - Prob. 13MCCh. 18 - Prob. 14MCCh. 18 - How is the anatomy of capillaries and capillary...Ch. 18 - Prob. 16SAQCh. 18 - Write an equation showing the relationship between...Ch. 18 - Prob. 18SAQCh. 18 - Describe the neural mechanisms responsible for...Ch. 18 - Explain the reasons for the observed changes in...Ch. 18 - Prob. 21SAQCh. 18 - Prob. 22SAQCh. 18 - How are nutrients, wastes, and respiratory gases...Ch. 18 - Prob. 24SAQCh. 18 - Physiologists often consider capillaries and...Ch. 18 - Mr. Hutchinson, another middle-aged victim of the...Ch. 18 - Mr. Hutchinson, another middle-aged victim of the...Ch. 18 - Mr. Hutchinson, another middle-aged victim of the...
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- What are the two branches of the autonomic nervous system? How are these branches distinguished from each other physiologically?arrow_forwardWhich nerves—the afferent nerves or efferent nerves—are also referred to as motor nerves? Why are they called motor nerves?arrow_forwardwhich part of the nervous system carries impulses between the body and the central nervous system?arrow_forward
- b) You are a contestant on the game show "Who wants to be a millionaire?". You must answer one final question. If you get the question right, you will win a million dollars, but if you get it wrong, you will get nothing. As the host prepares to read the question, your heart rate increases and your muscles start trembling. Which division of the autonomic nervous system is conducting the actions potentials to the heart and muscles in this case? Division responsible: /1 c) In 2013, the United Nations confirmed that sarin had been used in a chemical warfare attack in Damascus that resulted in hundreds of deaths including men, women, and children. BBC News. (Sept. 2013). Syria chemical attack:what we know. Retrieved from http://www.bbc.com/news/world-middle-east-23927399 Sarin works by inhibiting an enzyme known as acetylcholine esterase, whose job is to break down acetylcholine in the synapses. Which division of the autonomic nervous system is likely to be most affected during a sarin gas…arrow_forwardIn 3 to 4 sentences explain, How do the sympathetic and parasympathetic nervous systems maintain homeostasis even though they have opposing physiological effects?arrow_forwardSome faculty dislike teaching lecture classes after lunch, complaining that the students do not pay attention at this time. From a physiologic viewpoint, what is happening to these students?arrow_forward
- A laboratory experiment is set up where you have two fully functional nerves properly aligned so that it potentially can transmit an action potential through a synapse to the second nerve. The buffer outside the cells contain Na+, H+ and Cl- as the only inorganic ions. When you stimulate the nerve, surprisingly the second nerve does not respond. What is the most likely explanation for the failure of the second nerve response? State why you chose your answer. a. The lack of K+ in the buffer prevents propagation of the action potential b. Neurotransmitter is not being released into the synaptic space. c. An action potential can only be initiated by opening a ligand-gated channel. d. Although neurotransmitter is released, it is unable to stimulate opening of the second nerve' ligand-gated channel. e. Repolarization of the axon does not occur in this buffer.arrow_forwardWhich nerves does not contain the sympathetic fibers?arrow_forwardWhat is the functional cell of the nervous system?arrow_forward
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