Which of the following meninges is in contact with the brain tissue ?

Options

A. Duramater
B. Arachnoid
C. Piamater
D. No meninx is in contact with the brain tissue

Answer

To determine which of the meninges is in contact with the brain tissue, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Meninges**: The meninges are protective membranes that cover the brain and spinal cord. There are three layers of meninges:
- Dura mater (outermost layer)
- Arachnoid mater (middle layer)
- Pia mater (innermost layer)

2. **Identify the Layers**:
- The **dura mater** is the tough outer layer that provides the most protection.
- The **arachnoid mater** is the middle layer, which is web-like and contains cerebrospinal fluid.
- The **pia mater** is the delicate innermost layer that closely adheres to the surface of the brain and follows its contours.

3. **Determine Contact with Brain Tissue**:
- The layer that is in direct contact with the brain tissue is the **pia mater**. This layer covers the brain's surface and is intimately associated with the cerebral cortex.

4. **Conclusion**: Based on the above information, the correct answer to the question is that the **pia mater** is the meningeal layer in contact with the brain tissue.

### Final Answer:
The correct option is **Pia mater**.

---