NATS 1675 Study Guide - Midterm Guide: Allantois, Placenta, Fetus
26 Sep 2015
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*see slide 3 for type ab+ blood (a antigen, b antigen, and rh antigen: antibodies: proteins designed to protect the body exist within the plasma portion of the blood, antibodies which react with blood group antigens are produced genetically or upon exposure to the wrong blood group antigen, antibodies which react with blood group antigens remain active in the blood unless they are part of an antigen antibody reaction. If fetal blood passes through the placenta in the mother (not supposed to), it will sensitize the mother: the woman"s body responds to the foreign blood type by producing antibodies against the rh+ cells (rbc"s have the rh antigen; no antibodies against the rh factor; rh have no antigen; have rh antibodies in plasma); when exposed to antigens, she will make more antibodies, antibodies can cross the placenta & attack the fetal rbc"s.
