Which induces the development of corpus luteum :

Options

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

Answer

To determine which hormone induces the development of the corpus luteum, we can break down the menstrual cycle and the roles of different hormones involved. Here’s a step-by-step solution:

### Step-by-Step Solution:

1. **Understanding the Menstrual Cycle**:
- The menstrual cycle consists of four phases: menstrual phase, follicular phase, ovulatory phase, and luteal phase.

2. **Menstrual Phase**:
- During this phase, levels of hormones such as LH (Luteinizing Hormone) and progesterone decrease, leading to menstruation.

3. **Follicular Phase**:
- In this phase, the anterior pituitary gland releases FSH (Follicle-Stimulating Hormone), which stimulates the growth of ovarian follicles. These follicles produce estrogen, which helps thicken the endometrial lining.

4. **Ovulatory Phase**:
- Both LH and FSH reach their peak levels during this phase, leading to the release of an ovum (egg) from a mature follicle.

5. **Luteal Phase**:
- After ovulation, the remaining follicle cells transform into the corpus luteum. This transformation is induced by LH. The corpus luteum then secretes progesterone, which further supports the thickening of the endometrial lining.

6. **Conclusion**:
- The hormone that induces the development of the corpus luteum is Luteinizing Hormone (LH).

### Final Answer:
**Luteinizing Hormone (LH)** induces the development of the corpus luteum.

---