The Circulatory System, Essay Example

The circulatory system consists of the blood, blood vessels and the heart. The system serves a purpose of moving the blood to the places where it can be supplied with enough oxygen as well as where the wastes can be disposed. Therefore circulation ensures that the newly oxygenated blood is brought back to the body tissues. The blood circulation takes place in the organs like the kidneys and the liver, which ensures that the removal of wastes is accomplished. The blood then takes the journey back again for fresh oxygen in the lungs. The process repeats again and again, ad is considered to be healthy for the life of the tissues, cells and the whole organism. The human has a heart that is four chambered to ensure that the oxygenated blood does not meet with the deoxygenated blood. The chambers also ensure that there is continuous and efficient motion of extremely blood that has already been oxygenated to the body organs. This continuous movement is in turn advantageous in the thermal regulation and in the movement of the muscles.

How the Circulatory System Function

The oxygenated blood is carried to the heart by the large veins. The blood which is oxygenated is pumped around the body, by the heart, which in turn nourishes the cells with food and oxygen. Thereafter, the blood is carried by some small tubes known as the blood vessels to the whole part of the body. The blood with carbon dioxide then comes back via some set of tubes.  The blood is therefore referred to as a waste product and needs to be excreted. The circulatory system takes back the deoxygenated blood to the lungs where it is taken out through breathing.

How the organ system contributes to physiological homeostasis of the human organism

The circulatory system controls the temperature of the body. The body heat is mostly given out by the heart when the body is at rest. But when the muscles are at work, much heat is generated which more than the heat is given out by the heart. The circulatory system also controls the blood pressure through   the kidney, the control of the body Ph as well as the control of the glucose concentration in the body.

The Disease that is Associated with Circulatory System and How It Affects the Human Health

The circulatory system is mostly affected by the cardiovascular disease which affects the heart and the blood vessels. The disease is always linked with unhealthy lifestyle. One of it is the angina which is characterized by the pain in the chest and the discomfort. It comes as a result of insufficient supply of the oxygenated blood to the muscles of the heart.

References

Collins, R. (2003). The Circulatory System. Oxford: Cornell University.

Kennedy, S. (1992). The Circulatory System and the homeostasis. London: The Hogarth Press.