Hormone responsible for ovulation and development of corpus luteum is

Options

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

Answer

To answer the question regarding the hormone responsible for ovulation and the development of the corpus luteum, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Question**: The question asks for a specific hormone that plays a dual role in both ovulation and the development of the corpus luteum.

2. **Identify the Hormones Listed**: The options provided are:
- A. FSH (Follicle Stimulating Hormone)
- B. LTH (Luteotropic Hormone)
- C. LTH (Luteotropic Hormone)
- D. ICSH (Interstitial Cell Stimulating Hormone)

3. **Analyze Each Option**:
- **Option A: FSH**: This hormone is primarily involved in the growth and maturation of ovarian follicles and does not directly trigger ovulation or the formation of the corpus luteum.

- **Option B: LTH**: Also known as Prolactin, this hormone is mainly responsible for milk production in mammals and does not play a role in ovulation or corpus luteum development.

- **Option C: LTH**: This is a repeat of option B and has the same function.

- **Option D: ICSH**: This hormone is involved in stimulating testosterone production in males and is not related to ovulation or the corpus luteum in females.

4. **Identify the Correct Hormone**: The hormone that is primarily responsible for triggering ovulation and supporting the development of the corpus luteum is **Luteinizing Hormone (LH)**. LH peaks just before ovulation, leading to the release of the egg and also promotes the transformation of the ruptured follicle into the corpus luteum.

5. **Conclusion**: Based on the analysis, the correct answer to the question is **B. LH (Luteinizing Hormone)**.