Human Anatomy
9th Edition
ISBN: 9780135168059
Author: Marieb, Elaine Nicpon, Brady, Patricia, Mallatt, Jon
Publisher: Pearson Education, Inc.,
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Chapter 15, Problem 6RQ
Summary Introduction
To determine:
The mechanism for control of the ANS.
Introduction:
The nervous system includes the central nervous system (CNS) and peripheral nervous system (PNS). The CNS contains the brain and the spinal cord, whereas the PNS includes the cranial and spinal nerves present throughout the body. The autonomic nervous system (ANS) comes under the PNS, and it regulates all involuntary actions of the visceral organs.
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Which of the following is the best way to describe how the ANS is controlled? (a) completely under control of voluntary cerebral cortex, (b) entirely controls itself, (c) completely under control of brain stem, (d) little control by cerebrum, major control by hypothalamus and amygdaloid body, and major control by spinal and peripheral reflexes.
Which of the following does not characterize the ANS? (a) twoneuron motor chains, (b) preganglionic cell bodies in the CNS, (c) presence of postganglionic cell bodies in ganglia, (d) innervation of skeletal muscle.
Which part of the brain is the main integration center of the ANS? Which part exerts the most direct influence over autonomic functions?
Chapter 15 Solutions
Human Anatomy
Ch. 15 - Which fibers in the motor division of the PNS are...Ch. 15 - Prob. 2CYUCh. 15 - Where are the sympathetic ganglia located? Where...Ch. 15 - Are visceral sensory fibers considered part of the...Ch. 15 - Which spinal nerves carry parasympathetic...Ch. 15 - Prob. 6CYUCh. 15 - Prob. 7CYUCh. 15 - Why are white rami communicantes located only on...Ch. 15 - What is the general effect of sympathetic...Ch. 15 - Which types of autonomic fibers (preganglionic,...
Ch. 15 - Prob. 11CYUCh. 15 - Prob. 12CYUCh. 15 - Which region of the CNS is the main control center...Ch. 15 - Which embryonic tissue forms the postganglionic...Ch. 15 - Which division of the ANS is deficient in...Ch. 15 - Prob. 1RQCh. 15 - For each of the following terms or phrases, write...Ch. 15 - The thoracic splanchnic nerves contain which kind...Ch. 15 - The collateral ganglia contain which kind of cell...Ch. 15 - Preganglionic sympathetic neurons develop from (a)...Ch. 15 - Prob. 6RQCh. 15 - The white rami communicantes contain what kind of...Ch. 15 - Collateral sympathetic ganglia are involved. with...Ch. 15 - Is the visceral sensory nervous system part of the...Ch. 15 - (a) Describe the anatomical relationship of the...Ch. 15 - What effect does sympathetic activation have on...Ch. 15 - Which of the effects listed in question 11 would...Ch. 15 - A friend asks you how the parasympathetic...Ch. 15 - What manifestations of decreased ANS efficiency...Ch. 15 - The students in anatomy class were having...Ch. 15 - Describe the sympathetic pathways to the (a)...Ch. 15 - Prob. 17RQCh. 15 - Prob. 18RQCh. 15 - Prob. 19RQCh. 15 - How do the somatic motor and visceral motor (ANS)...Ch. 15 - A 1-year-old infant has a swollen abdomen and is...Ch. 15 - Prob. 2CRCAQCh. 15 - Prob. 3CRCAQCh. 15 - Prob. 4CRCAQCh. 15 - Prob. 5CRCAQCh. 15 - Prob. 6CRCAQCh. 15 - Prob. 7CRCAQCh. 15 - Prob. 8CRCAQ
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- Describe the sympathetic pathways to the (a) submandibular salivary gland, (b) bladder, (c) sweat glands in the skin, (d) adrenal medulla, (e) heart, (f) stomach.arrow_forwardChoose the correct division of the ANS that generates the following results: S = sympathetic; P = parasympathetic. 11. sweaty palms 12. blushing 13. urination 14. stomach churning 15. salivary gland secretion 16. constriction of pupils 17. increased blood pressure 18. increased respiration 19. decreased heart rate 20. digestive enzyme secretionsarrow_forwardYou are walking to class, pondering the intricacies of physiology, when you trip over an uneven place in the sidewalk and fall. Unhurt but embarrassed and angry, you jump up and glance around to see if anyone is watching. From your knowledge of neuroanatomy and function, explain how the following areas of the brain might be involved in this scenario: cerebrum cerebellum limbic systemarrow_forward
- Which of the following describes the disinhibition in the direct pathway of the basal ganglia? Question 6 options: A) Subthalamic nucleus inhibits internal segment of the globus pallidus which disinhibits substantia nigra B) Substantia nigra inhibits striatum which disinhibits the subthalamic nucleus C) Striatum inhibits internal segment of the globus pallidus which disinhibits thalamus D) Striatum inhibits external segment of the globus pallidus which disinhibits thalamusarrow_forwardWhat effect does parasympathetic activation have on each of the following structures? (a) pupils of the eye, (b) salivary glands, (c) airways, (d) digestive organs, (e) adrenal medulla.arrow_forwardIn the limbic stream through the basal ganglia, the basal ganglia output projects from what region? Question 12 options: A) External segment of the globus pallidus B) Ventral pallidum C) Putamen D) Internal segment of the globus pallidus E) Striatumarrow_forward
- The ANS does not regulate (a) skeletal muscles, (b) cardiac muscles, (c) the digestive tract, (d) the bladder.arrow_forwardThe most important autonomic control center in the CNS is:- a. the cerebral cortex. b. the limbic system. c. the midbrain. d. the hypothalamus. e. the sympathetic chain gangliaarrow_forwardWhich area of the brain is most directly involved in mediating autonomic reflexes?arrow_forward
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