Squeezing of leucocytes from capillary walls is

Options

A. Diakinesis
B. Diapedesis
C. Diapause
D. Diaphysis

Answer

To solve the question "Squeezing of leucocytes from capillary walls is?", we will analyze the given options and determine the correct answer step by step.

### Step-by-Step Solution:

1. **Understand the Question**: The question is asking about the process by which leukocytes (white blood cells) squeeze through the walls of capillaries.

2. **Review the Options**:
- **Diakinesis**: This term refers to a specific stage in meiosis, particularly during prophase I. It is not related to the movement of leukocytes.
- **Diapedesis**: This term describes the process of blood cells, particularly leukocytes, moving out of the bloodstream and into tissues. It is characterized by the squeezing of these cells through the capillary walls.
- **Diapause**: This term refers to a period of suspended development in some organisms, particularly in response to environmental conditions. It does not relate to leukocyte movement.
- **Diaphysis**: This term refers to the central part of a long bone. It is unrelated to the question about leukocytes.

3. **Identify the Correct Answer**: Among the options, diapedesis is the only term that accurately describes the squeezing of leukocytes from capillary walls.

4. **Conclusion**: Therefore, the correct answer to the question is **Diapedesis**.

### Final Answer:
The squeezing of leucocytes from capillary walls is called **Diapedesis**.

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