Health
Tiny blood clots help guide blood flow as placenta develops, mouse study finds
During pregnancy, the human embryo is initially supplied with nutrients through the yolk sac; later, the placenta takes over this role. It consists of maternal and embryonic tissue, through whose blood vessels the mother's blood flows.
AI Summary
A mouse study found that tiny blood clots form within developing placental blood vessels and appear to direct the flow of maternal blood. The placenta, which replaces the yolk sac as the embryo’s nutrient source, consists of both maternal and embryonic tissue through which the mother’s blood circulates. The research suggests these micro‑clots play a functional role in shaping placental blood flow during pregnancy.
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