.... is the process by which a baby is pushed out of the uterus and passes out of the mother's body.

Options

A. Expulsion
B. Dilation
C. Birth
D. Labour

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the term that describes the process through which a baby is expelled from the uterus and exits the mother's body.

2. **Gestation Period**: The typical duration of pregnancy, known as the gestation period, is approximately 9 months. This is the time it takes for the embryo to develop fully in the uterus.

3. **Development of the Embryo**: During the gestation period, the embryo undergoes significant growth and development, preparing for birth.

4. **Hormonal Changes**: As the pregnancy reaches its term, hormonal changes occur, particularly an increase in the hormone oxytocin. This hormone plays a crucial role in stimulating uterine contractions.

5. **Uterine Contractions**: The increase in oxytocin leads to contractions of the uterus, which are essential for the process of childbirth.

6. **Process of Expulsion**: The contractions help push the baby out of the uterus and through the birth canal, resulting in the baby being born.

7. **Terminology**: The process of a baby being pushed out of the uterus is referred to as "parturition" or "childbirth." However, in the context of the options provided, the correct term that aligns with the question is "birth."

8. **Final Answer**: Therefore, the answer to the question is "birth."

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