Continued secretion of milk is maintained by
Or
Which of the following is a lactogenic hormone

Options

A. Prolactin
B. LH
C. Relaxin
D. STH

Answer

**Step-by-Step Solution:**

1. **Identify the Question**: The question asks which hormone is responsible for the continued secretion of milk and is classified as a lactogenic hormone.

2. **Understand Lactogenic Hormones**: Lactogenic hormones are those that promote milk production in mammals. The primary lactogenic hormone is Prolactin.

3. **Analyze the Options**: The options provided include:
- Prolactin
- Luteinizing Hormone (LH)
- Relaxin
- Somatotropin (Growth Hormone)

4. **Evaluate Each Option**:
- **Prolactin**: This hormone is produced by the pituitary gland and is directly responsible for stimulating milk production in the mammary glands. It is indeed a lactogenic hormone.
- **Luteinizing Hormone (LH)**: This hormone is involved in the regulation of the menstrual cycle and ovulation, and it stimulates the growth of ovarian follicles. It is not a lactogenic hormone.
- **Relaxin**: This hormone is secreted by the placenta and helps in childbirth by dilating the cervix. It does not stimulate milk production.
- **Somatotropin (Growth Hormone)**: This hormone is responsible for body growth and metabolism but does not have a direct role in lactation.

5. **Conclusion**: Based on the analysis, the correct answer to the question is **Prolactin**, as it is the hormone that maintains the continued secretion of milk and is classified as a lactogenic hormone.

**Final Answer**: Prolactin is the lactogenic hormone responsible for the continued secretion of milk.

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