Blood Circulation Essay

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A DISCUSSION OF BLOOD CIRCULATION IN THE HUMAN BOBY

It is a well-known fact that blood circulation is one of the important things that keep a person alive. Blood is the red fluid that circulates in the blood vessels or is a specialized bodily fluid that supplies essential substances and nutrients, such as sugar, oxygen and hormones to the body cell and carries waste substance away from the body such as urine and carbon dioxide. Blood circulation works like that; the blood goes from the heart through the veins, capillaries arteries and then back to the heart again.
The circulatory system consists of the heart which pump the blood and the blood vessels through which the blood is circulated to the body and back to the heart. According to Fosbery and Adams (2009) explain that the heart contract and force blood into blood vessels, there is a certain path that the blood follows through the body. The blood moves through pulmonary …show more content…

The three main types of blood vessels; artery begin with the aorta, the large artery leaving the heart, they carry oxygen rich blood away from the heart to all of the body tissues. They branch several times becoming smaller and smaller as they carry blood further from the heart. Capillaries are small, thin blood vessels that connect the arteries and veins. Veins these are blood vessels that take oxygen poor in blood back to the heart. The veins become large and large as they get closer to the heart. The superior vena cava is the large vein that brings blood from the head and arms to the heart and the inferior vena cava brings blood from the abdomen and legs into the heart. James (1999) stated that this vast system of blood vessels; arteries, veins and capillaries is over 60000 miles long. That’s long enough to go around the world more than twice. Blood flows continuously through your body’s blood

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