Identify five hormones at play during pregnancy state their roles.
1. Human Chorionic Gonadotropin (hCG): This hormone is produced by the placenta and helps to maintain the corpus luteum, which in turn produces progesterone during the early stages of pregnancy. This hormone is also what is detected in a pregnancy test.
2. Progesterone: This hormone is crucial for maintaining the uterine lining and preventing contractions that could lead to miscarriage. It also helps to regulate the immune system to prevent rejection of the fetus.
3. Estrogen: This hormone helps to regulate the growth of the uterus and breast tissue during pregnancy. It also plays a role in the development of the fetus.
4. Relaxin: Produced by the corpus luteum and later by the placenta, relaxin helps to relax the ligaments and joints in the pelvis to allow for easier delivery of the baby.
5. Oxytocin: Known as the "love hormone," oxytocin plays a key role in triggering contractions during labor and promoting the bonding between mother and child after birth.