Question

Human chorionic gonadotropin is secreted by.

• A. Chorion
• B. Amnion
• C. Placenta
• D. Corpus luteum

Answer 1

The correct option is C

Placenta

The correct option is C.

Explanation of the correct option:

Option C:

1. The placenta is a tissue that is developed in the uterus of the mother during pregnancy.
2. The placenta is the tissue that helps to provide nutrition and oxygen to the fetus.
3. The human chorionic gonadotrophin (hCG) is produced by the syncytiotrophoblast, which later forms the placenta.
4. The hCG hormone helps in growing and thickening the uterine wall and endometrium to support the growing foetus.
5. hCG levels rise after the process of conception and keep on increasing during pregnancy.

Explanation of the incorrect option:

Option A:

1. The chorion is the outermost membrane of the growing foetus.
2. It develops from the zona pellucida (thick extracellular outer coat of egg).
3. Chorion along with the endometrium of the uterus forms the placenta.
4. Chorion does not secrete human chorionic gonadotropin hormone.

Option B:

1. The amnion is the fluid-filled cavity that encloses the growing fetus.
2. Amnion is composed of amniotic fluid which holds the embryo in suspension.
3. It protects the embryo against injury as it acts as a cushion.
4. Amnion does not secrete human chorionic gonadotropin hormone.

Option D:

1. The Corpus luteum is a cyst present inside the female reproductive organ which is responsible for releasing an egg every month.
2. It produces the hormone progesterone the pregnancy that helps the uterus grow during pregnancy.
3. It is formed after a mature egg is released.
4. Corpus luteum does not secrete human chorionic gonadotropin hormone.

Final answer: Human chorionic gonadotropin is secreted by Placenta.