Question

describe the structure of the heart and draw its diagram

Answer 1

The heart is divided into four chambers consisting of two atria and two ventricles; the atria receive blood, while the ventricles pump blood. The right atrium receives blood from the superior and inferior vena cavas and the coronary sinus; blood then moves to the right ventricle where it is pumped to the lungs.

Answer 2

It is located in the chest cavity with its lower part pointing towards the left.Its size is that of person's fist.It pumps blood rich in carbon dioxide to lungs and oxygen rich blood to other parts of the body.