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How does your immune system recognize you from your enemies?

How does your immune system recognize you from your enemies? - Biology Forum

How does your immune system recognize you from your enemies? - Biology Forums. Ask questions and discuss the study of Biology. If you have Biology questions from your homework ask them here!


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Old 06-24-2009, 02:16 PM
Pipette Filler
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Default How does your immune system recognize you from your enemies?



how is this related to organ transplants, blood type, and pregnant mothers
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Old 06-24-2009, 02:16 PM
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Recognition molecules on the surface of cells (antigens) are recognised as self or foreigen. If foreign rejection oocurs by the immune system.
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Old 06-24-2009, 02:17 PM
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You have a Human Leukocyte Antigen (a recognition antigen) in your cells which tell other cells that you are one of them.

In the cases of blood transfusions and organ transplants, the antibodies recognize that the transplanted organ/blood is not compatible (since it does not have the same HLA as the body), so it attacks it aggressively, leading to organ failure or embolism (blood clumping).

For pregnant mothers, we humans have factors called Rh. In the ase of intermarriages, a father might be Rh-, and a mom Rh+. If the fetus conceived in the mother is a Rh-, the mom's Rh+ will attack it. The doctor then prescribes anti-Rh injections so the mom's antibodies won't attack the fetus.
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