Which one of the following is called as milk ejection hormone and birth hormone ?

Options

A. Vasopressin
B. Oxytocin
C. Somatotrophic hormone
D. Pancreozymin

Answer

To determine which hormone is referred to as the "milk ejection hormone" and the "birth hormone," we can analyze the options provided:

1. **Vasopressin**: Also known as antidiuretic hormone (ADH), it is produced in the hypothalamus and released by the posterior pituitary. Its primary function is to regulate water balance in the body by promoting water reabsorption in the kidneys. It does not play a role in milk ejection or childbirth.

2. **Oxytocin**: This hormone is produced in the hypothalamus and released by the posterior pituitary gland. Oxytocin is well-known for its roles in childbirth and lactation. It stimulates uterine contractions during labor (hence referred to as the "birth hormone") and promotes the ejection of milk from the mammary glands during breastfeeding (referred to as the "milk ejection hormone").

3. **Somatotropic hormone**: Also known as growth hormone (GH), it is involved in growth, metabolism, and cell regeneration. It does not have a direct role in milk ejection or childbirth.

4. **Pancreozyme**: This is not a commonly recognized hormone; it seems to refer to enzymes produced by the pancreas that aid in digestion. It does not relate to childbirth or milk ejection.

Based on the analysis, the hormone that is called the "milk ejection hormone" and the "birth hormone" is **Oxytocin**.

**Final Answer**: The hormone referred to as the milk ejection hormone and birth hormone is **Oxytocin** (Option B).

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