Human Physiology: An Integrated Approach (8th Edition)
8th Edition
ISBN: 9780134605197
Author: Dee Unglaub Silverthorn
Publisher: PEARSON
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Chapter 11.1, Problem 9CC
Summary Introduction
To determine: Whether chromaffin cells contain muscarinic or nicotinic acetylcholine (Ach) receptors.
Introduction: The autonomic neurons have targets for cardiac muscle, few exocrine glands, smooth muscle, and some endocrine glands and also for lymphoid tissue and liver. Neuroeffector junction is defined usually as a synapse between a postganglionic autonomic neuron and its target cell.
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Students have asked these similar questions
Which statement about nicotinic acetylcholine receptors (nAChRs) is true?
a. Each nAChR is composed of seven different protein subunits.
b. They are ionotropic receptors and conduct Na+ and Ca2+ ions across the cell membrane causing depolarization and a fast excitatory response.
c. They are ionotropic receptors and conduct K+ ions across the cell membrane, causing depolarization and a fast excitatory response.
d. They are found in all areas of the nervous system except the brain.
Give an account of signalling at a neuromuscular junction through the nicotinic acetylcholine
receptor.
Explain how ligand-gated channels are opened, using nicotinic ACh receptors as an example.
Chapter 11 Solutions
Human Physiology: An Integrated Approach (8th Edition)
Ch. 11.1 - Prob. 1CCCh. 11.1 - The central nervous system consists of the...Ch. 11.1 - Prob. 3CCCh. 11.1 - A nerve that carries both sensory and motor...Ch. 11.1 - Prob. 5CCCh. 11.1 - In what organelle is most intracellular Ca2+...Ch. 11.1 - Prob. 7CCCh. 11.1 - Prob. 8CCCh. 11.1 - Prob. 9CCCh. 11.2 - Prob. 10CC
Ch. 11.2 - Compare gating and ion selectivity of...Ch. 11.2 - Prob. 12CCCh. 11 - Prob. 1RQCh. 11 - Prob. 2RQCh. 11 - Prob. 3RQCh. 11 - Prob. 4RQCh. 11 - Neurons that secrete acetylcholine are described...Ch. 11 - List four things that can happen to autonomic...Ch. 11 - Prob. 7RQCh. 11 - Prob. 8RQCh. 11 - Somatic motor pathways a. are excitatory or...Ch. 11 - Prob. 10RQCh. 11 - Prob. 11RQCh. 11 - Compare and contrast: a. neuroeffector junctions...Ch. 11 - Prob. 13RQCh. 11 - Create a concept map comparing the somatic motor...Ch. 11 - If a target cells receptor is _______ (use items...Ch. 11 - Ganglia contain the cell bodies of (choose all...Ch. 11 - Prob. 17RQCh. 11 - You have discovered a neuron that innervates an...Ch. 11 - Prob. 19RQCh. 11 - Prob. 20RQ
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Explain how ligand-gated channels produce synaptic potentials, using the nicotinic ACh receptor as an example.arrow_forwardMuscarinic receptors binda. epinephrine.b. norepinephrine.c. acetylcholine.d. cholinesterase.e. neuropeptides.arrow_forwardExplain how inhibition can be produced by (a) muscarinic ACh receptors in the heart; and (b) GABAreceptors in neurons of the CNS.arrow_forward
- List the effects of sympathoadrenal stimulation on different effector organs. In each case, indicate whether the effect is due to alpha- or beta-receptor stimulation.arrow_forwardWhen do neural discharges in the brain have their strongest effect? a. When the discharge rate of individual nerve cell is highest b. When individual nerve cells fire in regular way c. When the coherence of discharges in groups of nerve cells is greatest d. When many nerve cells have burst activityarrow_forwardBeta blockers are drugs that interfere with stimulation of organs by nerves of the sympathetic system. Would these drugs be useful in treating excessively high blood pressure or excessively low blood pressure?arrow_forward
- 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_forwardWhat is the direct effect (prior to any reflex compensation) of administeringintravenously a selective beta 1 receptor agonist?A)Increased heart rate, stroke volume and total peripheral resistance.B)Increased total peripheral resistance and renin secretion.C)Increased heart rate and stroke volume.D) Increased total peripheral resistance and decreased renin secretion.E) Decreased renin secretion, total peripheral resistance and heart rate.arrow_forwardWhat is the nicotinic acetylcholine receptor? Where is it expressed?arrow_forward
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