Which hormone is primarily responsible for maintaining pregnancy?

Which hormone is primarily responsible for maintaining pregnancy?

• A. Estrogen
• B. Progesterone
• C. Oxytocin
• D. Prolactin

Answer: (B)

Progesterone is the hormone primarily responsible for maintaining pregnancy. It plays a crucial role in preparing the endometrium, or the lining of the uterus, for implantation of a fertilized egg. Once implantation occurs, progesterone helps to sustain the pregnancy by inhibiting uterine contractions, ensuring that the environment remains conducive for the developing fetus. Additionally, progesterone supports the development of mammary glands in preparation for breastfeeding. While estrogen, oxytocin, and prolactin all have roles in reproductive processes, they do not hold the same level of significance as progesterone in the context of maintaining pregnancy. Estrogen works alongside progesterone to promote various changes during pregnancy but is more involved in the development of the fetus and preparing the mother's body for labor. Oxytocin is primarily known for its role in stimulating labor contractions and milk ejection during breastfeeding, while prolactin is chiefly involved in milk production.

Progesterone is the hormone primarily responsible for maintaining pregnancy. It plays a crucial role in preparing the endometrium, or the lining of the uterus, for implantation of a fertilized egg. Once implantation occurs, progesterone helps to sustain the pregnancy by inhibiting uterine contractions, ensuring that the environment remains conducive for the developing fetus. Additionally, progesterone supports the development of mammary glands in preparation for breastfeeding.

While estrogen, oxytocin, and prolactin all have roles in reproductive processes, they do not hold the same level of significance as progesterone in the context of maintaining pregnancy. Estrogen works alongside progesterone to promote various changes during pregnancy but is more involved in the development of the fetus and preparing the mother's body for labor. Oxytocin is primarily known for its role in stimulating labor contractions and milk ejection during breastfeeding, while prolactin is chiefly involved in milk production.