Relaxin is secreted by

Options

A. Corpus luteum
B. Pituitary
C. Pineal
D. Ovary

Answer

**Step-by-Step Solution:**

1. **Understanding Relaxin**: Relaxin is a hormone that plays a significant role during pregnancy, particularly in preparing the body for childbirth.

2. **Identifying the Source of Relaxin**: The question asks where Relaxin is secreted from. It is important to know the anatomical structures involved in hormone secretion.

3. **Analyzing the Options**:
- **Corpus Luteum**: This structure forms in the ovary after ovulation and is responsible for secreting hormones during the menstrual cycle and pregnancy.
- **Pituitary Gland**: Known as the master gland, it regulates other endocrine glands but does not secrete Relaxin.
- **Pineal Gland**: This gland is involved in the secretion of melatonin and serotonin, not Relaxin.
- **Ovary**: While the ovary produces several hormones, Relaxin is specifically secreted by the corpus luteum, which is a part of the ovary.

4. **Conclusion**: The correct answer is that Relaxin is secreted by the **Corpus Luteum**.

**Final Answer**: Relaxin is secreted by the corpus luteum.

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