HUMAN PHYSIOLOGY: AN INTEG ACCESS C
8th Edition
ISBN: 9780134714837
Author: Silverthorn
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
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.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Conotoxin is produced by marine cone snails. Among its effects is to block
voltage-gated Ca2+ channels in n
eurons.
A. What anatomical part of a neuron would be affected by conotoxin?
B. How would the neuron's action potential be affected by conotoxin? Explain,
using at least TWO of the following terms: threshold, depolarization,
repolarization, hyperpolarization, summation, IPSP, EPSP, exocytosis
C. If conotoxin affected a somatic motor neuron, would this toxin cause muscle
weakness or increased muscle tension? Explain why.
Predict the effect of a reduced extracellular concentration of Na+ on themagnitude of the action potential in an electrically excitable cell.
Discuss the concept of termination of neurotransmitter action by comparing the mechanisms
by which acetylcholine and nitric oxide's actions are terminated.
(a) Name the three primary mediators of purinergic receptors.
(b) Which one of these mediators is sometimes used to treat supraventricular tachycardia?
(c) Explain why the drug in (b) is considered safer than verapamil in the treatment of
supraventricular tachycardia?
Chapter 11 Solutions
HUMAN PHYSIOLOGY: AN INTEG ACCESS C
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
Knowledge Booster
Learn more about
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
- Name and discuss the function of 2 common neurotransmitters.arrow_forwardExplain how ligand-gated channels produce synaptic potentials, using the nicotinic ACh receptor as an example.arrow_forwardGive an account of signalling at a neuromuscular junction through the nicotinic acetylcholine receptor.arrow_forward
- Correct the following false statement: "Any cell that has the acetylcholine receptor will have the same response as any other cell that also has the acetylcholine receptor when exposed to acetylcholine". Explain why this statement is false.arrow_forwardDescribe the distribution of voltage gated ion channels in the nodes of Ranvier-vs-trigger zone/axonarrow_forwardExplain the role, using diagrams wherever possible, of G protein coupled receptors mediating the following physiological effects. a. Positive inotropic and positive chronotropic effects in the heart b. Vasoconstriction in vascular smooth muscle cells.arrow_forward
- Explain how ligand-gated channels are opened, using nicotinic ACh receptors as an example.arrow_forwardBoth rhodopsin in vision and the muscarinic acetylcholine receptor in cardiac muscle are coupled to ion channels via G proteins. Describe the similarities and differences between these two systems.arrow_forward1) A 100-um diameter nerve axon has the following properties: rm = 2.5 x 104 ohm x cm, ri = 1 x 105 ohm/cm, r0 = 0, cm = 3 x 10-8 F/cm. The permeability to Cl- is very high and Cl- ions are at resting potential Vm. A steady inward current is injected into the axon resulting in a Vm of -110 mV at the site of current injection. If the Vm 3 mm from the site of injection is -94.5 mV, what is the resting Vm?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Biology: The Unity and Diversity of Life (MindTap...BiologyISBN:9781305073951Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa StarrPublisher:Cengage Learning
Biology: The Unity and Diversity of Life (MindTap...
Biology
ISBN:9781305073951
Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher:Cengage Learning
12 Organ Systems | Roles & functions | Easy science lesson; Author: Learn Easy Science;https://www.youtube.com/watch?v=cQIU0yJ8RBg;License: Standard youtube license