HUMAN ANATOMY PKG >CUSTOM<
HUMAN ANATOMY PKG >CUSTOM<
8th Edition
ISBN: 9781323572528
Author: Marieb
Publisher: Pearson Custom Publishing
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Chapter 19, Problem 8RQ
Summary Introduction

To determine:

The closure of the aortic valve.

Introduction:

The unidirectional flow of blood through the heart is regulated by the heart valves. The heart has two types of valves, namely atrioventricular valve and semilunar valve. The atrioventricular valve is further categorized as tricuspid valve and bicuspid valve. The atrioventricular valve is present between the atrium and the ventricle while the semilunar valves are present at the opening of the pulmonary artery and the aorta.

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Students have asked these similar questions
The aortic valve closes (a) at the same time the mitral valve closes, (b) just after the atria contract, (c) just before the ventricles contract, (d) just after the ventricles contract.
Blood leaves the left ventricle by passing through the (a) aortic semilunar valve. (b) pulmonary semilunar valve. (c) mitral valve. (d) tricuspid valve.
Blood within the veins is prevented from flowing away from the heart because of the presence of: (a) venous reservoirs. (b) muscular walls. (c) clots. (d) valves.

Chapter 19 Solutions

HUMAN ANATOMY PKG >CUSTOM<

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