Innermost meninx is found invested on/in

Options

A. White mater of brain
B. Gray mater of brain
C. Between duramater and arachnoid
D. Gray mater of spinal cord

Answer

To solve the question "Innermost meninx is found invested on/in," we need to understand the structure of the meninges and their relationship with the brain.

### Step-by-Step Solution:

1. **Understanding Meninges**: The meninges are protective membranes that cover the brain and spinal cord. They consist of three layers: the dura mater, the arachnoid mater, and the pia mater.

2. **Identifying the Innermost Meninx**: The innermost layer of the meninges is known as the pia mater. It is the layer that is closest to the brain tissue.

3. **Location of Pia Mater**: The pia mater is found directly invested on the surface of the brain. It adheres closely to the contours of the brain, following its folds and grooves.

4. **Relation to Grey Matter**: The pia mater is in direct contact with the grey matter of the brain. The grey matter consists of neuronal cell bodies, which are concentrated in the outer layer of the cerebral cortex.

5. **Conclusion**: Therefore, the answer to the question is that the innermost meninx, the pia mater, is found invested on/in the grey matter of the brain.

### Final Answer:
The innermost meninx (pia mater) is found invested in the grey matter of the brain.

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