Question

Decribe process of circulation of blood in heart? why valves are present in heart​

Answer 1

Answer:

Blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium. As the atrium contracts, blood flows from your right atrium into your right ventricle through the open tricuspid valve.

Explanation:

Answer 2

Blood reaches right atrium then to right ventricle and to lungs .From lungs it reach left atrium then to left ventricle and to all body parts