placenta

[00945584]

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what passes though the placenta?
how does the fetus recieve oxygen because O2 is transfered through the blood and blood of the mother and fetus dont mix.

i think i am right.

 

[Charles_Carmichael]

The blood doesn't mix, you're right. But nutrients, O2, CO2, etc. pass through the placenta easily. The fetus gets O2 from the mother because fetal hemoglobin has a higher affinity for O2 that adult hemoglobin does (this is because fetal Hb has a lower affinity for 2,3-BPG). Anyways, the fetal Hb basically "strips" the adult Hb off its O2. This is how the fetus gets oxygen. Hope this helps.

 

[linkin06]

it's all about diffusion w/ the placenta.

 

[Funniman250x]

I got to hold my first placenta the other day after a C-Section... so cool!!! Kind of felt like a big jelly fish.