Stimulation of uterine contraction during child birth is brought about by :

Options

A. Adrenaline
B. Progesterone
C. Oxytocin
D. Prolactin

Answer

**Step-by-Step Solution:**

1. **Understanding Uterine Contractions:**
- During childbirth, the uterus undergoes contractions to help in the delivery of the baby. These contractions are primarily stimulated by specific hormones.

2. **Identifying Key Hormones:**
- The main hormone responsible for stimulating uterine contractions during childbirth is **oxytocin**. It is produced by the hypothalamus and released by the posterior pituitary gland.

3. **Role of Oxytocin:**
- Oxytocin facilitates the contraction of the smooth muscles in the uterus, which aids in the process of labor and delivery. It also plays a role in the milk ejection reflex during breastfeeding.

4. **Other Hormones:**
- While other hormones such as estrogen and progesterone are important for preparing the uterus for pregnancy and maintaining it, they do not directly stimulate contractions during childbirth.

5. **Conclusion:**
- Therefore, the stimulation of uterine contraction during childbirth is primarily brought about by **oxytocin**.

**Final Answer:**
- Stimulation of uterine contraction during childbirth is brought about by **oxytocin**.

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