Give the location of Nissl's granules.

Explanation

**Step-by-Step Solution:**

1. **Understanding Nissl's Granules**: Nissl's granules are cellular structures primarily composed of ribosomes and rough endoplasmic reticulum. They are involved in the synthesis of proteins.

2. **Location in Neurons**: Nissl's granules are located in the cytoplasm of neurons, specifically within a region known as the neuroplasm.

3. **Neuroplasm Definition**: The neuroplasm is the cytoplasmic part of a neuron, which includes the cell body (cyton) where the nucleus is situated.

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