Neuroglial cells support and protect the neurons and it comprises

Options

A. Less than 1/2 the volume of the neural tissue
B. More than 1/2 the volume of the neural tissue
C. More than 2/3 the volume of the neural tissue
D. Less than 1/4 the volume of the neural tissue

Answer

**Step-by-Step Solution:**

1. **Understanding Neuroglial Cells**: Neuroglial cells, also known as glial cells, are non-neuronal cells in the nervous system that support and protect neurons. They play critical roles in maintaining homeostasis, forming myelin, and providing support and protection for neurons.

2. **Volume Composition of Neural Tissue**: It is important to know that neuroglial cells make up a significant portion of the neural tissue. Specifically, they comprise more than half of the volume of neural tissue.

3. **Functions of Neuroglial Cells**: The primary functions of neuroglial cells include:
- Supporting and protecting neurons.
- Providing nourishment to neurons.
- Maintaining the environment around neurons.

4. **Types of Neuroglial Cells**: There are several types of neuroglial cells, including:
- **Microglia**: These act as the immune cells of the central nervous system.
- **Astrocytes**: These provide structural support and regulate the blood-brain barrier.
- **Oligodendrocytes**: These are responsible for forming the myelin sheath around neurons in the central nervous system.

5. **Identifying the Correct Answer**: Given the options provided, we need to determine which statement accurately reflects the volume that neuroglial cells comprise in neural tissue.
- The first option states they comprise less than one half of the volume of neural tissue, which is incorrect.
- The second option states they comprise more than one half of the volume of neural tissue, which is correct.
- The third option states they comprise more than two-thirds of the volume of neural tissue, which is incorrect.
- The fourth option states they comprise less than one-fourth of the volume of neural tissue, which is also incorrect.

6. **Conclusion**: Therefore, the correct answer is that neuroglial cells comprise more than one half of the volume of neural tissue.

**Final Answer**: Neuroglial cells comprise more than one half of the volume of neural tissue.

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