Bone marrow takes part in

Options

A. (a) Controlling blood pressure
B. (b) As hemopoietic tissue
C. (c) Assisting kidneys
D. (d) Assisting liver

Answer

**Step-by-Step Solution:**

1. **Understanding Bone Marrow**: Bone marrow is a spongy tissue found inside bones. It plays a crucial role in the body’s hematopoiesis, which is the process of blood cell production.

2. **Identifying Stem Cells**: Bone marrow contains stem cells, specifically hematopoietic stem cells, which are responsible for the formation of blood cells.

3. **Functions of Bone Marrow**:
- **Production of Red Blood Cells (RBCs)**: These cells are essential for transporting oxygen from the lungs to the rest of the body.
- **Production of White Blood Cells (WBCs)**: These cells are vital for the immune system, helping to defend the body against infections.
- **Production of Platelets**: These are crucial for blood clotting, preventing excessive bleeding when injuries occur.

4. **Conclusion**: Given its role in producing these components of blood, bone marrow is classified as a hemopoietic tissue, meaning it is involved in the formation of blood.

5. **Evaluating Options**:
- Option A (controlling blood pressure) is incorrect as bone marrow does not directly regulate blood pressure.
- Option C (assisting kidneys and liver) is also incorrect as bone marrow does not assist these organs in their primary functions.
- Therefore, the correct answer is Option B, which states that bone marrow takes part in hemopoiesis.

**Final Answer**: Bone marrow takes part in hemopoiesis (production of blood cells).

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