Human Physiology: An Integrated Approach (8th Edition)
Human Physiology: An Integrated Approach (8th Edition)
8th Edition
ISBN: 9780134605197
Author: Dee Unglaub Silverthorn
Publisher: PEARSON
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Concept explainers

Corona Radiata
Corona Radiata is a collection of nerve fibers present in the brain that carries messages between the brain cells of the cerebral cortex and the brain stem. Both brain stem and cerebral cortex play a role in motor function and sensation and it is the cor…
Neuron Structure
A neuron is defined as the functional unit of the body system called the nervous system. It is significant in transmitting signals that include receiving and sending the signals from a portion of the brain. The neurons are considered specialized cells in…
Afferent Neurons
Neurons are electrically excitable cells in the body specialized for receiving and transmitting information. They are referred to as the structural units of the nervous system. The important parts of a neuron include the cell body, dendrites, and axons.
Motor Homunculus
The term homunculus is Latin and is referred to as ‘little man’. In neuroanatomy, the cortical homunculus is either the motor or sensory distribution along the cerebral cortex of the brain. It was discovered by the great scientist ‘Wilder Penfield and Ed…
Nervous System
The nervous system is the portion of an animal's body that controls and transmits signals between various parts of the body. The central nervous system (CNS) and the peripheral nervous system (PNS) are the two primary components of the nervous system in …
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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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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.
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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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