Friday, December 13, 2013

AIDS: Complete Summary

        Viruses are the smallest and simplest type of parasite. They venture the consistency and latch on over a living cell just to reproduce. When these computer viruses do take over these cells, they may cause great rail at or even completely kill the invaded cell.         AIDS, which stands for Acquired Immunodeficiency Syndrome, is caused by a lethal virus called Human Immunodeficiency Virus, or better cognise to everybody as human immunodeficiency virus. HIV is a fragile virus because it can stand up outside the human body for only a a couple of(prenominal) minutes. nearly regularly, the virus is found in origin, semen, and vaginal secretions of the infect people. However, saliva and tears contain much lower concentrations. Most people hold that they can not cause HIV, however as we shake up seen in Magic Johnsons case, even illustrious celebrities can circumvent this disease. To get infected, HIV has to get last(pren ominal) the skin or the mucose membranes and into the bloodstream. HIV causes the bodys resistive governing body to collapse the act that the bloodstream is infected.         To Understand how HIV weakens the immune remains, it is necessary to transform how the immune system works. The immune system is somewhat alike(p) to an army. Thousands of duster blood cells are extremely organized to date invading enemies such as the HIV virus and opposite such infections. White blood cells dispel through the bloodstream and the lymphatic system.
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The lymphatic system is a network of vessels an d lymph glands that percolate fluid and cel! ls from tissues and deliver them to the bloodstream. The white blood cells can straggle the blood vessels, travel between cells, enter the lymphatic system, and last return to the bloodstream. These cells patrol the body, searching for contrary invaders and attacking both they find.         When invaders like HIV infect the body, white blood cells called henchman T cells are alerted... If you want to get a expert essay, order it on our website: OrderCustomPaper.com

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