HUMAN ANATOMY AND PHYSIOLOGY - Essay Example

1. The lymphocytes are the most affected with Joe’s T-cell count at less than 2% of total lymphocytes, B-cells at less than 1% of total lymphocytes, and natural killer cells at 90% of total lymphocytes, whereas the normal reading should be T-cells 60-80%, B-cells 15-25%, and natural killer cells at 10-20%of total lymphocyte count. 3. No. Joe will not have normal levels of anti-bodies, as it is the B-cells that are responsible for secretion of anti-bodies, and their less than normal levels in the blood means that anti-bodies will also be on the lower side. 4. The low levels of B-cells lower the availability of anti-bodies, and the low levels of T-cells reduce the ability to fight viruses.

This weakened immune system of Joe makes him susceptible to bacterial infections. 2. Other children above the age of twelve will not develop SCID. Children younger than twelve still have chances to develop SCID.. By the time any child attains the age of twelve the immune system of the body is fully developed and functional. Severe combine Immunodeficiency will demonstrate itself before the full development of the immune system. For the same reason children below the age of twelve still carry the risk of demonstrating SCID.