What do grey and white matter in the brains represent ?

Explanation

**Step-by-Step Solution:**

1. **Understanding Grey Matter:**
- Grey matter is a major component of the central nervous system (CNS).
- It primarily consists of neuronal cell bodies, dendrites, unmyelinated axons, glial cells, and capillaries.
- The presence of neuronal cell bodies indicates that grey matter is involved in processing and integrating information.

2. **Understanding White Matter:**
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