What are the roles of the uterus during pregnancy?

The uterus provides a nurturing environment for the developing foetus, supplying nutrients, oxygen and removing waste.

The uterus, also known as the womb, plays a crucial role during pregnancy. It is a muscular organ that expands as the foetus grows, providing a safe and nurturing environment for the baby to develop. The uterus is lined with a thick layer of tissue called the endometrium, which thickens during the menstrual cycle to prepare for potential pregnancy. If fertilisation occurs, the fertilised egg implants itself into this lining, marking the beginning of pregnancy.

The uterus is connected to the mother's bloodstream and facilitates the exchange of nutrients and oxygen from the mother to the foetus. This is made possible by the placenta, an organ that develops in the uterus during pregnancy. The placenta attaches to the wall of the uterus and connects to the baby via the umbilical cord. It acts as a transport system, delivering oxygen and nutrients from the mother's blood to the baby's blood.

In addition to supplying the foetus with nutrients and oxygen, the uterus also plays a role in removing waste products. The baby's waste products, such as carbon dioxide, are passed back through the placenta and into the mother's bloodstream to be eliminated.

The uterus also protects the foetus from external pressure and potential harm. Its muscular walls contract during labour to help push the baby out during childbirth. After delivery, the uterus contracts to its pre-pregnancy size.

In summary, the uterus is a vital organ during pregnancy, providing a safe and nurturing environment for the foetus, facilitating the exchange of nutrients and oxygen, and removing waste products.