Human Physiology
15th Edition
ISBN: 9781259864629
Author: Fox, Stuart Ira
Publisher: Mcgraw-hill Education,
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Chapter 9, Problem 4RA
Summary Introduction
To determine:
The results caused by the stimulation of alpha-adrenergic receptors.
Introduction:
Nerve fibers in which either acetylcholine or the dopamine act as neurotransmitter are referred to as adrenergic nerves. Adrenergic neurons are associated with the autonomic nervous system of the peripheral nervous system. Alpha and beta are the two main classes of adrenergic receptors. These adrenergic receptors act via the G protein.
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Chapter 9 Solutions
Human Physiology
Ch. 9 - Describe the preganglionic and postganglionic...Ch. 9 - Compare the control of cardiac muscle and smooth...Ch. 9 - Describe the sympathetic pathway from the CNS to...Ch. 9 - Prob. 4CPCh. 9 - Prob. 5CPCh. 9 - Prob. 6CPCh. 9 - Prob. 7CPCh. 9 - Prob. 8CPCh. 9 - Explain how the effects of the sympathetic and...Ch. 9 - Prob. 1RA
Ch. 9 - Prob. 2RACh. 9 - Prob. 3RACh. 9 - Prob. 4RACh. 9 - Which of these fibers release norepinephrine? a....Ch. 9 - Prob. 6RACh. 9 - Prob. 7RACh. 9 - Prob. 8RACh. 9 - Prob. 9RACh. 9 - Prob. 10RACh. 9 - Prob. 11RACh. 9 - A drug that serves as an agonist for ai receptors...Ch. 9 - Prob. 13RACh. 9 - Prob. 14RACh. 9 - Compare the effects of adrenergic and cholinergic...Ch. 9 - Prob. 16RACh. 9 - Prob. 17RACh. 9 - Prob. 18RACh. 9 - Prob. 19RACh. 9 - Prob. 20RACh. 9 - Prob. 21RACh. 9 - Prob. 22RACh. 9 - Prob. 23RACh. 9 - Prob. 24RACh. 9 - Prob. 25RACh. 9 - Prob. 26RACh. 9 - Prob. 27RACh. 9 - Prob. 28RACh. 9 - Prob. 29RACh. 9 - Prob. 30RACh. 9 - Refer to table 7.3 to obtain axon diameters and...
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- Which second messenger system is used with beta-1 adrenergic receptors? A. cyclic AMP B. ATP C. calciumarrow_forwardWhich receptor is an adrenergic receptor that results in broncodialation when activated by agonist? a. M2 b. Beta 1 c. Beta 2 d. Alpha 1arrow_forwardWhich second messenger pathway enzyme is used with alpha-2 adrenergic receptors? A. phosphodiesterase (PDE) B. adenylate cyclase C. ATP hydrolasearrow_forward
- Increased sympathetic activity A. dilation of blood vessels in skin and viscera B. Constriction of blood vessels in skin and visceraarrow_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 type of anxiolytic medication operates on GABA receptors to inhibit ANS activation, but comes with potentially dangerous interactions and complications associated with long-term use? A. Tricyclic antidepressants B. Pregabalin C. Benzodiazepines D. SSRIsarrow_forward
- Which of these effectors is NOT directly controlled by the autonomic nervous system? a.cardiac muscle b.smooth muscle c.skeletal muscle d.most glandsarrow_forwardWhich statement is true? A. the pituitary glands dngles from the hypothalamus by the infundibulum B. The post-central gyrus houses the primary motor cortex C. The thalamus surround third ventricle D. White matter consists of myelinated axons of neuronsarrow_forwardWhich of these locations in the forebrain is the master control center for homeostasis through the autonomic and endocrine systems? a. hypothalamus b. thalamus c. amygdala Chapter 15 | The Autonomic Nervous System 691 d. cerebral cortexarrow_forward
- Which of the following is not a result of sympathetic nerve stimulation? A. Release of epinephrine B. Increased heart rate C. Negative chronotropic effect D. increased action potential firingarrow_forwardDopamine is an important neurotransmitter. Which disease or disorder results when the neurons in the brain that produce dopamine die? A. Multiple sclerosis B. Lou Gehrig's disease (amyotrophic lateral sclerosis) C. Parkinson's disease D. Seizure disorderarrow_forwardWhy can physostigmine, an AchE blocker, be used to treat myasthenia gravis? A. Physostigmine blocks nicotinic acetylcholine receptors. OB. Physostigmine prolongs the action of acetylcholine at the NMJ. OC. Physostigmine increases the amount of acetylcholine in synaptic vesicles. D. Physostigmine increases the reuptake of acetylcholine. O E. Physostigmine blocks K* channels.arrow_forward
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