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In immunology, determinant is another name for epitope (the portion of an antigen recognized by a BCR/Ab or TCR).


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Blood group A expresses A antigens and anti-B antibodies etc etc, see the next figure: Taken from the wikipedia entry on blood groups.


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So it turns out it can occur. It's called Hemolytic Disease of the Newborn (ABO), and according to the article (the relevant citations are a book and some journals to which I do not have access), it is very rare, and severe cases are even more rare. Apparently anti-A and anti-B antibodies are typically of the IgM isotype, which cannot cross the placental ...


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Bernoulli's principle can be a little tricky when applied to the cardiovascular system, but it still holds true across the entire system. You mention a good point that the relationship doesn't seem quite right at the aorta or arteries, because of the constant fluctuation of pressure between systolic and diastolic without a significant change in diameter of ...



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