How the Heart Pumps Blood

The heart is a muscular organ in the chest that pumps blood through the body. It works as the main pump of the vascular system. The heart has four chambers. The two atria are on top, and the two ventricles are below.

Blood enters the right atrium from the body as deoxygenated blood, which means i...

The heart is a hollow muscular organ that pumps blood through the body.

It is cone-shaped and weighs about 250 to 300 grams on average.

The heart is approximately 12 cm long, 6 cm thick, and 9 cm wide.

It has four chambers.

The right atrium accepts oxygen-depleted blood from the body and transfers it to the right vent...