Placenta | Human Reproduction | Class 12 | Zoology | Telangana | Khan Academy

https://www.khanacademy.org/science/t... In this video, we explore the placenta—an extraordinary organ that supports life inside the uterus. Beginning with implantation, we trace the step-by-step development of the placenta, understand its maternal and foetal components, and learn how it functions as an exchange, endocrine, and protective organ. We also examine the formation of the umbilical cord and its role in connecting the foetus to the placenta. Finally, the video provides a brief overview of human pregnancy and foetal development across the three trimesters. Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now! Timestamps: 00:00 – Recap of implantation & introduction to the placenta 00:37 – Development of placenta 02:38 – Components of the placenta 03:23 – Umbilical cord 04:35 – Functions of placenta 07:23 – Pregnancy and Gestation period 07:40 – Trimesters in pregnancy Khan Academy India is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We have videos and exercises that have been translated into multiple Indian languages, and 15 million people around the globe learn on Khan Academy every month. Support Us: https://india.khanacademy.org/donate