Biological Science (6th Edition)
6th Edition
ISBN: 9780321976499
Author: Scott Freeman, Kim Quillin, Lizabeth Allison, Michael Black, Emily Taylor, Greg Podgorski, Jeff Carmichael
Publisher: PEARSON
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Chapter 45, Problem 9TYPSS
Summary Introduction
To review:
The effect of ingestion of atropine on the heart rate.
Introduction:
The cardiac muscles are involuntary in nature and work by continuous depolarizations. Acetylcholine (ACh) is a neurotransmitter, which slows down the rate of depolarization and thereby decreases the heart rate.
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Noradrenaline acts on α1-adrenoceptors in the sinoatrial node to increase heart rate.
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Chapter 45 Solutions
Biological Science (6th Edition)
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