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What is a placenta?
Human BodyReproduction
Quick Answer
A placenta is an organ that develops during pregnancy and exchanges oxygen, nutrients, and waste between mother and fetus. It is central to the development of placental mammals.
The Full Story
The placenta forms in the uterus and links the motherβs blood supply with the fetus through a highly specialized membrane system. It does not directly mix maternal and fetal blood, but it allows vital materials to pass between them. In humans, the placenta also produces hormones that help maintain pregnancy. Similar placental structures are found in many mammals, reflecting one of the most successful reproductive strategies in the animal kingdom.
Key Facts
1.The placenta develops during pregnancy
2.It supports nutrient and oxygen exchange
3.It also produces pregnancy-related hormones
YouTube Angle
Suggested video title for this topic:
"The organ that makes mammal pregnancy work"