Essentials of Human Anatomy & Physiology (12th Edition)
12th Edition
ISBN: 9780134395326
Author: Elaine N. Marieb, Suzanne M. Keller
Publisher: PEARSON
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Chapter 7, Problem 33SAE
Summary Introduction
To review:
The opposing effects associated with sympathetic fibers as well as the parasympathetic fibers.
Introduction:
The ANS (autonomic nervous system) conducts the functions of the internal organs. It controls the different body functions such as respiratory rate, digestion, heart rate, urination, papillary response, and sexual arousal. The ANS is divided into three branches: PNS (parasympathetic nervous system), SNS (sympathetic nervous system), and the enteric nervous system. The SNS and PNS perform the opposite action in the same organ.
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Chapter 7 Solutions
Essentials of Human Anatomy & Physiology (12th Edition)
Ch. 7 - More than one choice may apply.
1. Which of the...Ch. 7 - Prob. 2MCCh. 7 - The innermost delicate meningeal layer is the a....Ch. 7 - Prob. 4MCCh. 7 - 5. The pineal gland is located in...Ch. 7 - Prob. 6MCCh. 7 - 7. The spinal cord feature associated with the...Ch. 7 - Prob. 8MCCh. 7 - Prob. 9MCCh. 7 - Motor functions of the extensor muscles of the...
Ch. 7 - 11. Neuroglia present in large numbers in areas of...Ch. 7 - 12. Which of the following is true of the...Ch. 7 - 13. What are the two great controlling systems of...Ch. 7 - Prob. 14SAECh. 7 - Prob. 15SAECh. 7 - Two major cell groups make up the nervous...Ch. 7 - Briefly explain how nerve impulses are initiated...Ch. 7 - Prob. 18SAECh. 7 - Prob. 19SAECh. 7 - Prob. 20SAECh. 7 - Prob. 21SAECh. 7 - 22. What is the function of the thalamus? The...Ch. 7 - Describe how the brain is protected by bone,...Ch. 7 - Prob. 24SAECh. 7 - Prob. 25SAECh. 7 - Prob. 26SAECh. 7 - Prob. 27SAECh. 7 - Prob. 28SAECh. 7 - Prob. 29SAECh. 7 - Prob. 30SAECh. 7 - Prob. 31SAECh. 7 - Prob. 32SAECh. 7 - Prob. 33SAECh. 7 - 34. How does a Schwann cell help insulate a nerve...Ch. 7 - Prob. 35SAECh. 7 - Prob. 36SAECh. 7 - Prob. 37CTCh. 7 - 38. Joseph, a man in his early 70s, was having...Ch. 7 - Prob. 39CTCh. 7 - Prob. 40CTCh. 7 - Prob. 41CTCh. 7 - 42. Mrs. Chen, a new mother, brings her infant to...Ch. 7 - Three-year-old Brittany is sobbing that her right...Ch. 7 - 44. Mr. Harrison is an 82-year-old bedridden...Ch. 7 - Clarence, an elderly man with a history of TIAs,...Ch. 7 - Prob. 46CTCh. 7 - Jason is the star of his hometown ice hockey team....Ch. 7 - Prob. 48CTCh. 7 - Prob. 49CTCh. 7 - As the aroma of freshly brewed coffee drifted by...
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- Describe the sympathetic pathway from the CNS to the (a) heart; and (b) adrenal gland.arrow_forwardHow can the sympathetic division cause smooth muscle torelax in some organs but contract in others?arrow_forwardWhy does the sympathetic division produce simultaneous effects throughout the body, in contrast to parasympathetic effects, which typically are localized to specific organs?arrow_forward
- compare 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_forwardSteven had a stroke resulting in his having difficulty speaking. Ruth suffered a severe nerve injury to her left arm while working, but after a few weeks regained full use of her arm. Why is Steven having difficulty regaining his speaking ability; whereas, Ruth has regained full function in her arm. Base your answer on nervous system regeneration and repair. Please respond with 1-2 paragraphs. (Hint: Section 12.10) Even though both injuries are nervous system injuries. There is a major difference between these two injuries: Central Nervous System versus Peripheral Nervous System!arrow_forwardThe effects of sympathetic and parasympathetic fibers are cooperative ina. the heart.b. the reproductive system.c. the digestive system.d. the eyes.arrow_forward
- Describe the sympathetic vasomotor tone: its origin, the neurotransmitter and receptor responsible for the effect. What is the physiological significance of the sympathetic tone?arrow_forwardWhich ion is most important for the formation of the membrane potential in a nerve? In what direction does it diffuse?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_forward
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