10/28/2025
One of the most beautiful illustrations of placental circulation I've seen so far! As someone that loves art, especially line drawings and concept illustration, this is worth staring at!
This is a gorgeous example of how maternal blood bathes the intervillous space to reach fetal circulation, and how the fetal circulation is still separate from the maternal blood (when mom and baby are healthy and when no one tugs on the placenta) but dips down into this space to transmit oxygen, nutrients, and toxins.
The uteroplacental circulation is unique: it is in essence two distinct circulatory systems in parallel (foetoplacental and maternoplacental). At term, it receives about 800ml/min of blood flow, or something like 14-15% of the total cardiac output. The maternoplacental circulatory system is also uni...