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When an antigen appears, those few specifically matched cells are stimulated to multiply into a full-scale army.Later, to prevent this army from overexpanding, powerful mechanisms to suppress the immune response come into play.research, scientists now believe more than 100 million immune cells exist.
Antibodies typically interact with circulating antigens, such as bacteria, but are unable to penetrate living cells.
Chief among the regulatory T cells are those known as helper (or inducer) cells.
In order to recognize and respond to each specific antigen, each T cell’s surface carries special receptor molecules for particular antigens.
T cells contribute to the body’s defenses in two major ways.
(Hofmann) “The immune system displays both enormous diversity and extraordinary specificity.” (Hofmann) It can recognize millions of distinctive foreign molecules and produce its own molecules and cells to match up with and counteract each of them.
In order to have room for enough cells to match the millions of possible foreign invaders, the immune system stores just a few cells for each specific antigen.
Multiple Sclerosis Stephanie **** Multiple Sclerosis (MS) is a chronic, often disabling disease that randomly attacks the central nervous system (brain and spinal cord).
The progress, severity and specific symptoms of the disease can not be predicted; symptoms may range from tingling and numbness to paralysis and blindness.
MS is a devastating disease because people live with its unpredictable physical and emotional effects for the rest of their lives. In the United States there are approximately 200 new cases diagnosed each week; MS is a common disease and not always caused by genetics.
Therefore, I feel we all need to have a better understanding of this disease that has no cure yet. In my paper I will explain what MS is, who gets MS, what MS has to do with the metabolism, some new techniques being used to pinpoint genetic factors, what some of the symptoms of MS is, and some treatments for MS.