Pick up the correct information about menstrual cycle control

Options

A. Estrogen and progesterone of ovary
B. FSH of pituitary
C. FSH and LH pituiatry
D. Oxytocin.

Answer

### Step-by-Step Solution:

1. **Understanding the Menstrual Cycle**: The menstrual cycle is a series of hormonal changes that prepare the female body for potential pregnancy. It typically lasts about 28 days and can be divided into several phases: menstrual phase, follicular phase, ovulation, and luteal phase.

2. **Identifying Key Hormones**: The main hormones involved in regulating the menstrual cycle include:
- **Estrogen**: Produced by the ovaries, it helps in the development of the follicle and the uterine lining.
- **Progesterone**: Also produced by the ovaries, mainly by the corpus luteum after ovulation, it prepares the uterus for potential implantation of a fertilized egg.
- **Follicle Stimulating Hormone (FSH)**: Released by the pituitary gland, it stimulates the growth of ovarian follicles.
- **Luteinizing Hormone (LH)**: Also released by the pituitary gland, it triggers ovulation and the formation of the corpus luteum.
- **Oxytocin**: While important in childbirth and lactation, it is not a primary hormone in the menstrual cycle control.

3. **Phases of the Menstrual Cycle**:
- **Menstrual Phase**: This is the shedding of the uterine lining, which lasts about 3-7 days.
- **Follicular Phase**: Following menstruation, FSH and LH levels rise, stimulating the growth of ovarian follicles.
- **Ovulation**: A surge in LH leads to the release of an egg from the ovary.
- **Luteal Phase**: After ovulation, the corpus luteum forms and secretes progesterone and some estrogen.

4. **Correct Information about Hormones**:
- Estrogen and progesterone are indeed produced by the ovaries.
- FSH and LH are released by the pituitary gland to regulate the menstrual cycle.
- The formation of the corpus luteum occurs after ovulation, which secretes progesterone.

5. **Conclusion**: Based on the information, the correct statements regarding menstrual cycle control are:
- Estrogen and progesterone are produced by the ovaries.
- FSH and LH are released from the pituitary gland.

Thus, the correct options are 1 (Estrogen and progesterone of ovary) and 3 (FSH and LH of pituitary).