The heart is a very hard-working organ which is inside the chest that sends blood round the body. Throughout your life, it will  constantly pump blood and oxygen to different sections of your body.

     The heart is divided into four parts called chambers (top right, bottom right, top left, and bottom left). A wall of muscle, called the septum, separates the left and right chambers. Blood that goes through the right chambers travels to the lungs. Blood that goes through the left chambers is pumped to the rest  of your body.


   
 
 From the moment it begins beating until the moment it stops, the human heart works tirelessly. In an      average lifetime, the heart beats more than two and a half billion times, without ever pausing to rest. Like a pumping machine, the heart provides the power needed for life.
 
This life-sustaining power has, throughout time, caused an air of mystery to surround the heart. Modern technology has removed much of the mystery, but there is still an air of fascination and curiosity.