Which hormone is produced by ovary in the second and third trimester of pregnancy ?

Options

A. Relaxin
B. Progesterone
C. Estrogen
D. hPL

Answer

To answer the question regarding which hormone is produced by the ovary during the second and third trimesters of pregnancy, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Hormones Produced by the Ovary**:
- The ovaries produce several hormones during pregnancy, primarily estrogen and progesterone.

2. **Focus on the Second and Third Trimesters**:
- During the second and third trimesters of pregnancy, the body undergoes various changes to prepare for childbirth.

3. **Recognize the Role of Relaxin**:
- Relaxin is a hormone that is specifically secreted during the second and third trimesters. It plays a crucial role in preparing the body for childbirth by relaxing the ligaments in the pelvis and widening the cervix.

4. **Estrogen and Progesterone**:
- While estrogen and progesterone are also present throughout the pregnancy, they are not specific to the second and third trimesters. They are produced from the beginning of pregnancy and continue until delivery.

5. **Conclusion**:
- Therefore, the hormone specifically produced by the ovary in the second and third trimesters of pregnancy, which helps in childbirth preparation, is **Relaxin**.

### Final Answer:
The hormone produced by the ovary in the second and third trimester of pregnancy is **Relaxin**.

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