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 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 chambers of the heart. The atria is separated from the ventricles by atrioventricular valves, AV valves. Put in paranthesis or something. You can return of your heart as a pump, it pumps blood through the vessels that are oxygen rich and carries waste away. According to the American personnel casualty Cross if you were to lay all of the vessels end to end they would clear 60,000miles spacing, that is enough to circle the earth more than two clock citation? Add a (year) up above if that leave be it. Add more to the structure of the heart.
The circulatory systems earnings of blood vessels can be unkept down 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 gas exchange; they are the vein and venules choppy articulate of the sentence, difficult to follow. The basic structure of these can be broken down into three layers the intima, media and adventia. The make up of each of the layers the intima contains endothelial cells and there are also collagenous bundles and some elastin. The media is the heart and soul layer that is mostly smooth muscle cells and type triple 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: Orderessay
If you want to get a full essay, wisit our page: write my essay .
No comments:
Post a Comment