Which of the following hormone is necessary for ovulation and also help to make a temporary endocrine gland?

Options

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

Answer

To answer the question about which hormone is necessary for ovulation and also helps to create a temporary endocrine gland, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Ovulation**: Ovulation is the process where a mature egg is released from the ovary. This process is regulated by hormones.

2. **Identifying Key Hormones**: The primary hormones involved in the regulation of the menstrual cycle and ovulation are Luteinizing Hormone (LH) and Follicle Stimulating Hormone (FSH).

3. **Role of Luteinizing Hormone (LH)**: LH is crucial for triggering ovulation. A surge in LH levels leads to the release of the egg from the ovary.

4. **Formation of the Corpus Luteum**: After ovulation, the remnants of the follicle transform into a structure called the corpus luteum. This is a temporary endocrine gland.

5. **Function of the Corpus Luteum**: The corpus luteum secretes hormones, primarily progesterone, which is essential for maintaining the uterine lining for potential implantation of a fertilized egg.

6. **Conclusion**: Therefore, the hormone necessary for ovulation and responsible for the formation of the temporary endocrine gland (corpus luteum) is Luteinizing Hormone (LH).

### Final Answer:
The hormone necessary for ovulation and also helps to make a temporary endocrine gland is **Luteinizing Hormone (LH)**.

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