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Class notes

Class notes Science

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3 pages
2025/2026 Written for academic year
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Second Year / 8th Grade
Course
Science
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Lecture notes of 3 pages for the course Science at Second year / 8th Grade

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Human Heart – Structure & Functions


Introduction

The human heart is a muscular organ responsible for pumping blood throughout the body. It
ensures continuous circulation of oxygen and nutrients.


Location & Size

The heart is located in the chest cavity between the lungs and slightly tilted to the left. It is roughly
the size of a closed fist.


Structure of the Heart

The heart consists of four chambers: Right Atrium, Right Ventricle, Left Atrium, and Left Ventricle.
The atria receive blood, while the ventricles pump blood out.

Document information

School year
5
Uploaded on
April 26, 2026
Number of pages
3
Written in
2025/2026
Type
Class notes
Professor(s)
Manimegalai
Contains
6 to 8
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