Our body has many organs, like the heart, lungs and stomach. These organs are present in our body from the time of our birth and work incessantly to keep us alive and healthy. But, did you know that when a woman is pregnant, her body creates a new, temporary organ? Yes, it is called the placenta. This organ is formed in the uterus of a pregnant woman. The placenta helps to nourish the unborn baby or foetus, as it grows inside the uterus, or womb as it is commonly called. Read the story to understand the functions of placenta and the hormones released by it.