The process of secretion of milk from the mammary glands of
human female is

Options

A. lactation
B. gastrulation
C. blastuation
D. morulation

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the process of secretion of milk from the mammary glands in human females.

2. **Identifying the Correct Term**: Among the options provided (lactation, gastrulation, blastulation, morulation), we need to identify which term specifically refers to the secretion of milk.

3. **Defining Lactation**: Lactation is defined as the secretion of milk from the mammary glands. It is a characteristic feature of mammals, including humans.

4. **Understanding the Function of Lactation**: The primary purpose of lactation is to provide nutrition and immune protection to the newborn after birth. This process is also known as breastfeeding or nursing.

5. **Analyzing Other Options**:
- **Gastrulation**: This is a stage in embryonic development that transforms the embryo from a single-layered structure (blastula) to a multi-layered structure (gastrula).
- **Blastulation**: This refers to the formation of a blastula during early embryonic development.
- **Morulation**: This is the process where a morula is formed through the cleavage of an ovum.

6. **Conclusion**: Based on the definitions and functions of the terms, the correct answer to the question is **lactation**.

**Final Answer**: The process of secretion of milk from the mammary glands of human females is called **lactation**.

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