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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. 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.
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 ...
The placenta produces many hormones, including:
- A hormone that is only produced during pregnancy and is the first detectable hormone of pregnancy. It can be detected in a mother's blood or urine within the first month of conception.
- Also known as human chorionic somatomammotropin, this hormone provides nutrition to the fetus and stimulates milk glands in the breasts for breastfeeding.
- A hormone that helps maintain a healthy pregnancy. It stimulates the growth of the uterus to accommodate the growing fetus and prepares the breasts for milk production.
- A hormone that stimulates the thickening of the uterine lining for implantation of a fertilized egg and prevents the shedding of this lining.
- A reproductive hormone that loosens and relaxes muscles, joints, and ligaments during pregnancy to help the body stretch and prepare for delivery.
- A group of hormones that includes interferons, tumor necrosis factor α, leukemia inhibitory factor, and interleukins.
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