Which of the following harmone is not involved in menstrual cycle?

Options

A. Luteinizing hormone
B. estrogen
C. progestrone
D. thyrooid and stimulating hormone

Answer

To determine which hormone is not involved in the menstrual cycle, we can analyze the roles of the given hormones:

1. **Luteinizing Hormone (LH)**:
- LH is crucial for the menstrual cycle as it triggers ovulation and supports the growth of the ovarian follicles. It plays a significant role in regulating the menstrual cycle.

2. **Estrogen**:
- Estrogen is one of the primary hormones in the menstrual cycle. It is involved in the development of the ovarian follicles and the preparation of the uterine lining for potential implantation of a fertilized egg.

3. **Progesterone**:
- Progesterone is also a key hormone in the menstrual cycle. It helps maintain the uterine lining after ovulation and is crucial for the early stages of pregnancy if fertilization occurs.

4. **Thyroid Stimulating Hormone (TSH)**:
- TSH is produced by the pituitary gland and stimulates the thyroid gland to produce thyroid hormones (T3 and T4). These hormones regulate metabolism and growth but are not directly involved in the menstrual cycle.

Based on this analysis, the hormone that is not involved in the menstrual cycle is **Thyroid Stimulating Hormone (TSH)**.

### Final Answer:
**Thyroid Stimulating Hormone (TSH)** is not involved in the menstrual cycle.