BIOLOGY >PRINT UPGRADE<
BIOLOGY >PRINT UPGRADE<
11th Edition
ISBN: 9780357091586
Author: Solomon
Publisher: CENGAGE L
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Chapter 44, Problem 2TYU
Summary Introduction

Introduction: The heart is the main organ of the circulatory system that pumps blood to all the tissues of the body. Sinoatrial node (SA node) is a group of cells located at the right atrium of the heart. SA node is also referred to as the pacemaker of the heart.

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12 Organ Systems | Roles & functions | Easy science lesson; Author: Learn Easy Science;https://www.youtube.com/watch?v=cQIU0yJ8RBg;License: Standard youtube license