Prabin Kalikote

The continuous rhythmic beat throughout life which is produced due to the contraction and relaxation of heart muscles is called heart beat.

Arterial pulse is the systemic contraction of the heart that can be felt as a jerk in certain arteries which are superficial in position.

We all know, left ventricle pumps large amount of blood to various parts of body through aorta. For this, it requires greater force which provided by its thick wall. But right ventricle supplies blood only towards lungs. For which, leas force is required. So, the wall of left ventricle is more muscular than that of right one.

We all know ventricle pumps out the large amount of blood to different parts of the body and lungs. So, it requires greater force for this action which is provided by thick wall. But auricle receives blood from lungs and different parts of body for which no great force is required. So, wall of ventricle is thicker than that of auricles.

We all know, the blood flow with low pressure in veins but flows with high pressure in arteries. So, to prevent the backward flow of blood in veins, valves are present. But no valves are required in arteries. So that, valves are present in veins but not in arteries.

We all know, WBCs protect the body from the attack of diseases causing germs and other harmful foreign materials. As a result, WBCs are called soldiers of the body.

The pressure of the blood inside the arteries is highest which is called systole.
The pressure of the blood inside the arteries is comparatively less, which is called diastole.