circulatory system

The role of the circulative system is not just cast offing wrinkle, eyepatch it does do that it is also carries oxygen and nutrients to our cells, it carries secretions and furious away and it interacts with the respiratory, digestive and urinary systems. The three major components of the circulatory system ar the heart; it is a muscular organ that pumps blood end-to-end our bodies. The second is blood it is composed of water, solutes and cells. The one-third is vessels; they are the tubes that transport the blood. The heart is made up of 2 atria; they are the receiving put up of the heart and two ventricles, the pumping put up of the heart. The atria is separated from the ventricles by atrioventricular valves, AV valves. Put in paranthesis or something. You ordure return of your heart as a pump, it pumps blood through the vessels that are oxygen rich and carries exhaust away. According to the American personnel casualty Cross if you were to identi fy all of the vessels end to end they would clear 60,000miles spacing, that is enough to encircle the earth more than two clock citation? tote up a (year) up above if that leave be it. kick in more to the structure of the heart. The circulatory systems earnings of blood vessels can be unkept subdue into two categories the vessels that deliver oxygenated blood to the body arties arties?

, arterioles and capillaries and the vessels that return the blood with nose candy dioxide for throttle exchange; they are the vein and venules choppy articulate of the sentence, knotty to follow. The basic structure of these can be broken down into three storys! the intima, media and adventia. The make up of each of the layers the intima contains endothelial cells and in that respect are also collagenous bundles and some elastin. The media is the heart and soulfulness layer that is mostly smooth muscle cells and type trinity collagen and is kept away the adventia by a layer of elastin. The outer(prenominal) layer contains collagen fibers and fibroblast The arteries have a larger media layer than the vein....If you neediness to get a full essay, order it on our website: OrderCustomPaper.com

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