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Which of the following hormones are secreted by the placenta?

A. Human chorionic gonadotropin

B. Chorionic thyrotropin

C. Estrogen

D. Progesterone
  • a)
    A only
  • b)
    A & B
  • c)
    A, B & C
  • d)
    A, B, C & D
Correct answer is option 'D'. Can you explain this answer?
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Which of the following hormones are secreted by the placenta?A. Human ...
Introduction
The placenta plays a crucial role in pregnancy by producing various hormones that support fetal development and maintain the pregnancy. The hormones secreted by the placenta include:
1. Human Chorionic Gonadotropin (hCG)
- hCG is one of the first hormones produced by the placenta.
- It helps maintain the corpus luteum, which in turn produces progesterone during early pregnancy.
- hCG is also the hormone detected in pregnancy tests.
2. Chorionic Thyrotropin
- Chorionic thyrotropin, also known as human chorionic thyrotropin (hCT), is involved in stimulating the thyroid gland.
- It helps increase the production of thyroid hormones, which are essential for the metabolism and development of both the mother and the fetus.
3. Estrogen
- The placenta produces significant amounts of estrogen, particularly estriol.
- Estrogen plays a vital role in the growth and development of the uterus and breast tissues.
- It also helps regulate other hormones and supports fetal development.
4. Progesterone
- Progesterone is another critical hormone secreted by the placenta.
- It maintains the uterine lining, allowing for implantation and growth of the embryo.
- Progesterone also helps suppress maternal immune responses to prevent rejection of the fetus.
Conclusion
In conclusion, the placenta secretes all four hormones: Human Chorionic Gonadotropin, Chorionic Thyrotropin, Estrogen, and Progesterone. Each of these hormones plays a significant role in ensuring a healthy pregnancy and supporting fetal growth, making option 'D' the correct answer.
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Which of the following hormones are secreted by the placenta?A. Human ...
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Which of the following hormones are secreted by the placenta?A. Human chorionic gonadotropinB. Chorionic thyrotropinC. EstrogenD. Progesteronea)A onlyb)A & Bc)A, B & Cd)A, B, C & DCorrect answer is option 'D'. Can you explain this answer?
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