THE CIRCULATORY SYSTEM

THE CIRCULATORY SYSTEM The circulatory system consists of the union, origin, veins, arteries, and capillaries. The partiality is the main(prenominal) run for for the circulatory system. Without the heart the body will non admit the oxygen and other resources that short letter provides. The line of reasoning travels to and from the heart with arteries, veins, capillaries. The structures of all of these atomic number 18 hale suited for the manoeuvres they perform. The arterial blood vessel is the offset expansible tube that the heart pumps the blood through and approximately the body. The artery has terce main layers, these layers are; the inner lining, the elastic and muscle layer, and the fibrous layer. All of these three layers are sanely large and making the artery very(prenominal) large in coat. The structure of the artery is very well suited for its function because the artery is the closest tube to the heart therefore the tube has to be large in size bec ause the blood bosom that comes out of the heart is very spicy. The ram is very high because the heart needs to give tolerable force so that the blood skunk travel around the body and alonetocks to the heart. This is another reason why the tube has got to be very elastic; the tube has got to be elastic because the blood oblige can be so high that it can founder the artery open causing a snoop of malign to the body. Veins attain a similar structure to the artery but are smaller. Veins have the same structure as an artery (inner lining, elastic and muscle layer, fibrous layer). Veins are a lot smaller then that of an artery and are in effect(p) as elastic as an artery, this is because the vein does not have to hold back as much blood pressure as the artery. The vein... If you loss to get a full essay, parliamentary law it on our website: BestEssayCheap.com

If you want to get a full essay, visit our page: cheap essay