Question

Explain the circulation of blood in our body in detailed.​

Answer 1

Hey friend here is your answer

The circulation of blood in our body

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In the heart, the left ventricle contracts, pushing red blood cells into the aorta, the body’s largest artery. From here, blood moves through a series of increasingly smaller arteries, until it reaches a capillary, the junction between arteries and veins. Here oxygen molecules detach from the red blood cells and slip across the capillary wall into body tissue.

Now de-oxygenated, blood begins its return to the heart. It passes through increasingly larger veins to eventually reach the right atrium. It enters the right ventricle, which pumps it through the pulmonary arteries into the lungs, to pick up more oxygen. Oxygenated, blood reenters the left atrium, moves into the left ventricle, and the blood’s journey begins again.

hope it help you.

Answer 2

Hey friend ^-^

Here is your answer:

The Heart

Structure:

                   The heart has a thin pericardium surrounding it and the fluid present between the pericardial membranes is called as pericardial fluid which reduces friction between the walls of the heart and the surrounding tissues when the heart is beating. Its is divided into two halves that is the right and left side by septum. Septum is a thick muscular wall. Each half is divided into two chambers the auricles and the ventricles.

Working:

                  The right ventricle pumps blood to the lungs and the right auricle receives blood from the rest of the body. Blood moves from the left side to the right side of the heart by passing through the blood vessels of the body. The left auricle receives blood from the lungs. The left ventricle pumps this blood to the rest of the body through blood vessels called aorta. The tricuspid valve and the bicuspid valve prevent the back flow of blood into the auricles when the ventricles contract. The semi-lunar valves prevent the back flow of blood when the ventricles relax.

Circulation:

                   Blood takes half a minute to complete a full circulation.

When all the heart muscle relax, deoxygenated blood from the head and body enters the right auricle through the superior vena cava and the inferior vena cava veins. At the same time oxygenated blood from the lungs enters the left auricle through the pulmonary vein.

The auricles force blood into the ventricles when when contracts forces blood into two arteries namely pulmonary artery and aorta. The right ventricle pumps blood into the pulmonary artery which carries this deoxygenated blood into the lungs while the left ventricle pumps blood into the aorta which distributes this oxygenated blood round the body.

               

Double circulation:

                              The heart acts like a double pump. In every heartbeat, the right side of the heart pumps deoxygenated blood to the lungs to collect oxygen. And at the same time, the left side of the heart pumps oxygenated blood from the lungs to other parts of the body.

Hope it helps u! ^-^