Question

can anybody .. can explain about the circulation system in human body...

Answer 1

The Heart
The heart is a muscular pumping organ located medial to the lungs along the body’s midline in the thoracic region. The bottom tip of the heart, known as its apex, is turned to the left, so that about 2/3 of the heart is located on the body’s left side with the other 1/3 on right. The top of the heart, known as the heart’s base, connects to the great blood vessels of the body: the aorta, vena cava, pulmonary trunk, and pulmonary veins.

Circulatory Loops
There are 2 primary circulatory loops in the human body: the pulmonary circulation loop and the systemic circulation loop.

Pulmonary circulation transports deoxygenated blood from the right side of the heart to the lungs, where the blood picks up oxygen and returns to the left side of the heart. The pumping chambers of the heart that support the pulmonary circulation loop are the right atrium and right ventricle.

Systemic circulation carries highly oxygenated blood from the left side of the heart to all of the tissues of the body (with the exception of the heart and lungs). Systemic circulation removes wastes from body tissues and returns deoxygenated blood to the right side of the heart. The left atrium and left ventricle of the heart are the pumping chambers for the systemic circulation loop.

Blood Vessels
Blood vessels are the body’s highways that allow blood to flow quickly and efficiently from the heart to every region of the body and back again. The size of blood vessels corresponds with the amount of blood that passes through the vessel. All blood vessels contain a hollow area called the lumen through which blood is able to flow. Around the lumen is the wall of the vessel, which may be thin in the case of capillaries or very thick in the case of arteries.

Answer 2

Circulation is universal. The human body is but one expression of this natural phenomenon. We're dealing with polarity. Positive and negative. The lungs house the exchange of gasses from blood cells to the rest of the body's extremities. During inhalation, we breathe in air and breathe out air. The difference is the micro concentration of different elements, carbon being the main waste by-product of cellular metabolism. Metabolism which is fueled by the consumption of oxygen. Blood is pumped from the heart, (what is blood pressure?) and is transported to almost every part of the body. Your hair is dead (what is hair made of?) - the blood returns to the lungs and the heart in order to exchange gasses and continue the perpetual cycle. Circulation is better understood through observing natural phenomenon such as deep sea ocean currents, electromagnetic forces and even the universe in general seems quite content recycling itself. I'm out of time. Continue discussion.