Key Stage 5 (Ages: 16-18) Human Heart: Important Components And Its Functioning

INTRODUCTION

Heart and blood vessels are two most important elements of human circulatory system. Our body itself has two circulatory systems:

Pulmonary Circulation
Systematic Circulation
STRUCTURE OF THE HEART
· Epicardium – outer layer

· Myocardium – middle layer

· Endocardium – inner layer
HEART CHAMBERS