Inhibition of secretion of which of the following hormone is necessary for disintegration of corpus luteum

Options

A. LH
B. Progesterone
C. LTH
D. FSH

Explanation

**Step-by-Step Solution:**

1. **Understanding the Role of Hormones in Ovulation**:
- During the menstrual cycle, the luteinizing hormone (LH) plays a crucial role in triggering ovulation. An LH surge leads to the release of the ovum from the ovarian follicle.

2. **Formation of Corpus Luteum**:
- After ovulation, the remnants of the ruptured follicle transform into the corpus luteum. This structure is essential for maintaining the uterine lining for potential implantation of a fertilized egg.

3. **Hormonal Secretion by Corpus Luteum**:
- The corpus luteum primarily secretes progesterone, which is vital for preparing and maintaining the endometrium (the uterine lining).

4. **Negative Feedback Mechanism**:
- As progesterone levels rise, it exerts negative feedback on the hypothalamus and pituitary gland, leading to a decrease in the secretion of LH. This is a critical regulatory mechanism in the menstrual cycle.

5. **Disintegration of Corpus Luteum**:
- The decrease in LH levels due to the negative feedback from progesterone is necessary for the disintegration of the corpus luteum. Without sufficient LH, the corpus luteum cannot be maintained and will eventually break down.

6. **Conclusion**:
- Therefore, the inhibition of LH secretion is necessary for the disintegration of the corpus luteum.

**Final Answer**: The inhibition of secretion of Luteinizing Hormone (LH) is necessary for the disintegration of the corpus luteum.

---