Several hormones like hCG.hPL, estrogen, progesterone are produced by:

Options

A. ovary
B. placenta
C. Fallopian tube
D. pituitary

Explanation

To answer the question regarding which organ produces several hormones like hCG, hPL, estrogen, and progesterone, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Hormones**: The hormones in question are hCG (human chorionic gonadotropin), hPL (human placental lactogen), estrogen, and progesterone.

2. **Understand the Function of Each Hormone**:
- **hCG**: This hormone is crucial during early pregnancy as it helps maintain the corpus luteum, which in turn produces progesterone.
- **hPL**: This hormone plays a role in regulating maternal metabolism and promoting fetal growth.
- **Estrogen**: This hormone is involved in the development of female secondary sexual characteristics and is important for regulating the menstrual cycle and pregnancy.
- **Progesterone**: This hormone prepares the endometrium for potential implantation of an embryo and helps maintain pregnancy.

3. **Determine the Source of Production**:
- Estrogen and progesterone are produced by the ovaries throughout a woman's life, but hCG and hPL are specifically produced during pregnancy.
- The placenta is an organ that develops in the uterus during pregnancy and is responsible for the exchange of nutrients and waste between the mother and fetus.

4. **Conclude the Answer**:
- The placenta is the organ that produces hCG, hPL, estrogen, and progesterone during pregnancy. Therefore, the correct answer to the question is the **placenta**.

### Final Answer:
The hormones hCG, hPL, estrogen, and progesterone are produced by the **placenta**.

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