Question

define the work of a heart with schematic representation of blood circulation​

Answer 1

Answer:

The deoxygenated blood is brought from the different parts of the body by the veins which enter the right atrium through the vena cava. This blood passes to the right ventricle which enters the pulmonary artery to carry the blood to the lungs. The blood is oxygenated and then brought back to the heart through the pulmonary vein. The oxygenated blood enters the left atrium through the pulmonary vein. This blood passes into the left ventricle which pumps the blood into the aorta. The aorta supplies the blood to the tissues of the body through arteries.

Answer 2

Answer:

the separation of the right side and the left side of the heart is useful to keep oxygenated and deoxygenated blood from mixing such separation allows a highly efficient supply of oxygen to the body this is useful in animals that have I need such as birds and mammals which constantly used energy to maintain their body temperature in animals that do not use energy for this purpose the body temperature depends on the temperature in the environment