LET’S FIND OUT THE HUMAN BODY THE HEART AND BLOOD IN YOUR BODY RYAN NAGELHOUT
4 INTRODUCING THE HEART If you sit still and put a hand on your chest you can feel something thumping You can even hear it if you listen carefully The organ inside your chest making that noise is your heart The human heart is one of the most The heart is always working to keep the body alive
5 An organ is a part of a person that consists of cells and tissues and performs particular tasks important organs in the body It pumps blood to every other organ which helps move nutrients and wastes through the body The blood moves through a system of tubes called vessels Together the heart and the blood vessels make up the body’s cardiovascular system The heart pumps blood through a vast network of different kinds of blood vessels
