The circulatory system or also called the cardiovascular system comes from the Greek word kardia, which means the word heart, and the Latin vasculum, which means a small vessel. This system is composed of a simple loop which starts, and ends, at the heart.
It also is a enclosed system in the sense that blood doesn't flow out or into the system during its Journey which goes from the heart ,to the body, and back again.
This system contains a continuous flow of the same liquid been pumped through the oop over and over again. The circulatory system is composed of five main parts which are the heart, arteries, arterioles, capillaries, and the veins. Each part has a specific and unique Job that helps the process of the system to be accomplished, and ables the syste
...m to function properly. The circulatory system begins in the right atrium. As the blood flows through the heart, it passes through each of the four chambers there are.
Then it takes a quick stop to the lungs in order to get rid of the carbon dioxide and to pick up oxygen and ends up in the lower left/hand chamber, hich is called the ventricle. When the blood is pushed out to the body and through the circulatory system, the left ventricle plays the role of the most important chamber in the heart. The left ventricle is the most important and largest chamber in the heart and is in charge to generate the force necessary to send blood to the aorta.
The blood then travels to the arterioles (where speed and pressure is adjusted)and then into the capillaries.
Here
blood flow is adjusted and changes the conditions in the body. However because or the arterioles, when the blood reaches de capillaries it is o longer traveling in a pulsing fashion This continuous flow is necessary because there is a constant exchange of oxygen and nutrients happening through the walls of the capillaries.
No cell in the body is very far away from a capillary. As blood travels through the capillaries, its supply of oxygen is reduced and it acquires waste products. From the capillaries, blood enters the venues and then veins, and travels back to the heart to be refreshed and sent out once again.
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