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There's a bunch of jibberish on fetal respiration and fetal circulation...do we need to know this?
Deav said:There's a bunch of jibberish on fetal respiration and fetal circulation...do we need to know this?
WilliamsF1 said:It's not in my EK stuff whatever that means. They only talked 1 sentence about a fetus and that was about the O2 dissociation curve of Hemoglobin. The curve shifts to the right (I think) lowering the affinity of O2 with Hemoglobin so the mother's blood releases the O2 to the fetus. Please correct me if I'm wrong. This is probably the only thing you might have to know.
What else pushes the curve to the right? CO2, H+, temp, etc?
BioMedEngineer said:Correct me if i am wrong, but I believe the curve is left shifted with respect to the dissociation curve because fetal hemoglobin has to "steal" oxygen from the mother (steal is the only word I can think of) so it has a higher affinity. A curve will be right shifted due to low affinity like acidic conditions or high temperatures--like in your tissues!