BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
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Question
Chapter 42, Problem 3U
Summary Introduction
Introduction:
Nervous system consists neural tissues comprises with blood vessels and connective tissues. It carries various messages to and from the brain and spinal cord to all over the body and transfer signals across different parts of the body. Involuntary functions are controlled by two divisions that are sympathetic and parasympathetic.
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Students have asked these similar questions
A fight-or-flight response in the body is controlled by thea. sympathetic division of the nervous system.b. parasympathetic division of the nervous system.c. release of acetylcholine from postganglionic neurons.d. somatic nervous system.
Preparing the body for the "fight-or-flight" response is the role of the
a.parasympathetic division
b.somatic nervous system
c.cerebrum
d.sympathetic division
The autonomic nervous system is part of the a. central nervous system. b. peripheral nervous system. c. sympathetic nervous system. d. parasympathetic nervous system.
Chapter 42 Solutions
BIOLOGY
Ch. 42.1 - Differentiate between subdivisions of the...Ch. 42.1 - Prob. 2LOCh. 42.1 - Explain the roles of the different nervous system...Ch. 42.2 - Contrast the relative concentrations of important...Ch. 42.2 - Prob. 2LOCh. 42.2 - Prob. 3LOCh. 42.3 - Prob. 1LOCh. 42.3 - Prob. 2LOCh. 42.3 - Prob. 3LOCh. 42.4 - Prob. 1LO
Ch. 42.4 - Prob. 2LOCh. 42.4 - Prob. 3LOCh. 42.5 - Describe the organization of the peripheral...Ch. 42.5 - Prob. 2LOCh. 42.5 - Prob. 3LOCh. 42.5 - Prob. 4LOCh. 42 - Data analysis Draw the resulting potentials for...Ch. 42 - Prob. 2DACh. 42 - Which of the following best describes the...Ch. 42 - The ____ cannot be controlled by conscious...Ch. 42 - Prob. 3UCh. 42 - Inhibitory neurotransmitters a. hyperpolarize...Ch. 42 - White matter is ______, and gray matter is...Ch. 42 - During an action potential a. the rising phase is...Ch. 42 - Prob. 7UCh. 42 - Imagine that you are doing an experiment on the...Ch. 42 - The Na+/K+ ATPase pump is a. not required for...Ch. 42 - Prob. 3ACh. 42 - The following is a list of the components of a...Ch. 42 - Prob. 5ACh. 42 - As you sit quietly reading this sentence, the part...Ch. 42 - G proteincoupled receptors are involved in the...Ch. 42 - Tetraethylammonium (TEA) is a drug that blocks...Ch. 42 - Describe the status of the Na+ and K+ channels at...Ch. 42 - Describe the steps required to produce an...Ch. 42 - Prob. 4S
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- Nicotinic receptors bind A. acetylcholine and allow chloride ions to exit the cell. B. acetylcholine and allow sodium ions to enter the cell. C. muscarine and increase the contractility of intestinal muscle. D. norepinephrine and can either stimulate or inhibit the cell. E. norepinephrine and allow potassium entry, thereby exciting the cell.arrow_forwardSympathetic splanchnic nerves are composed of A. preganglionic sympathetic axons that synapse in a sympathetic trunk ganglion. B. preganglionic sympathetic axons that did not synapse in a sympathetic trunk ganglion. C. postganglionic sympathetic axons that synapse in a sympathetic trunk ganglion. D. postganglionic sympathetic axons that did not synapse in a sympathetic trunk ganglion. E. None of the choices is correct.arrow_forwardWhich of the following statements is false? a. The sympathetic nervous system releases epinephrine and norepinephrine, which are positive chronotropic and inotropic agents. b. The endocrine system regulates cardiac output through chronotropic and inotropic hormones and through hormones that regulate water balance .c. The parasympathetic nervous system releases acetylcholine,which is a strongly negative inotropic agent. d. Factors such as electrolyte concentrations, body temperature,and age all affect cardiac output.arrow_forward
- Catecholamine (Epinephrine)-blockers are often used as a treatment to dilate blood vessels and therefore decrease arterial blood pressure (as a treatment for hypertension). This fact is excellent evidence to prove that the nervous system normally controlling the diameter of the arterial blood vessels is the: a. Somatosensory nervous system b. Sympathetic nervous system c. Reticular attenuating nervous system d. Parasympathetic nervous systemarrow_forwardWhich of the following releases norepinephrine as a neurotransmitter? a. preganglionic sympathetic neurons b. preganglionic parasympathetic neurons c. postganglionic sympathetic neurons d. postganglionic parasympathetic neuronsarrow_forwardWhich branch of the peripheral nervous system is though to underlie the body's "rest and digest" response (e.g., decreased heart rate when you are in a safe situation)? Choose the most specific answer. a. adrenal branch b. parasympathetic branch c. sympathetic branch d. autonomic brancharrow_forward
- Mark the following statements as true of false. If a statement is false, correct it to make a true statement. a. Ependymal cells regulate the composition and movement of cerebrospinal fluid. b. Schwann cells make myelin in the peripheral nervous system c. Microglia are neuroglial cells with an immune function. d. Oligodendrocytes repair damaged axons in the peripheral nervous system. e. Astrocytes regulate the extracellular environment of the brain and are key components of the blood-brain barrier. f. Oligodendrocytes and Schwann cells perform similar functions in different parts of the nervous system.arrow_forwardWhat do multiple sclerosis and ALS (amyotropic lateral sclerosis) have in common?a. They both are more common in young men than in young women.b. They both impair the initiation of action potentials.c. They both damage the myelin sheath, disrupting action potential transmission.d. They both impair nerve function in the peripheral nervous systemarrow_forwardThe fibers of the sympathetic division may release Ach at the: Select one: a. Synapse with the cardiac muscle b. Synapse with the postganglionic neuron c. Neuromuscular junction d. Synapse with the adrenal cortexarrow_forward
- The nervous system that consists of 12 pairs of cranial nerves and 31 pairs of spinal nerves is calleda. central.b. peripheral.c. sympathetic.d. parasympathetic.arrow_forwardWhich of the following is correct regarding the autonomic nervoussystem?a. It uses both cranial and spinal nerves.b. It is divided into sympathetic and parasympathetic divisions.c. Most organs under ANS control are under dual innervation—thatis, by both sympathetic and parasympathetic divisions.d. Major responsibilities are regulation and repair of cardiacmuscle, smooth muscles, organs, and glands.e. All of the above are correct.arrow_forwardWhere do preganglionic fibers come from for the parasympathetic division of the autonomic nervous system? A. sacral and coccyx region of the spinal cord B. brain stem and cervical region of the spinal cordC. brain stem and sacral part of the spinal cord D. thoracic and lumbar regions of the spinal cordarrow_forward
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