Question

what is the heart and its functions

Answer 1

human heart is an organ that pumps blood throughout the body via the circulatory system supplying oxygen and nutrient to the tissueand removing carbon dioxide and othet wastes

Answer 2

the heart is an organ which pumps blood to all parts of our body through the blood vessel

its functions are
it helps in the circulation of oxygen rich blood throughout the body by pumping
it receives oxygenated blood from lungs
it also pumps back the blood carrying carbon dioxide to lungs.
it shows rythemic contraction and relaxation for movement of blood.