Human Biology: Concepts and Current Issues (8th Edition)
Human Biology: Concepts and Current Issues (8th Edition)
8th Edition
ISBN: 9780134042435
Author: Michael D. Johnson
Publisher: PEARSON
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Chapter 8, Problem 7TY
Summary Introduction

Introduction:

The cardiac cycle functions in a very particular manner, and to ensure this, the numerous valves regulating blood flow need to open and close at precisely the right intervals. Therefore, the order, in which they open and close, is critical to the cardiac cycle.

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The Cardiovascular System: An Overview; Author: Strong Medicine;https://www.youtube.com/watch?v=Wu18mpI_62s;License: Standard youtube license