Nodes of Ranvier are found in

Options

A. cyton
B. nephrons
C. axon
D. telondendria

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks where the Nodes of Ranvier are found. We need to identify the correct structure from the given options.

2. **Analyzing the Options**:
- **Option 1: Cytons** - Cytons refer to the cell body of a neuron. Nodes of Ranvier are not found here.
- **Option 2: Nephrons** - Nephrons are the functional units of the kidney and are not related to the nervous system. Therefore, Nodes of Ranvier are not found here.
- **Option 3: Axon** - The Nodes of Ranvier are indeed found in the axon, specifically in myelinated nerve fibers where the myelin sheath is absent.
- **Option 4: Telodendria** - Telodendria are the terminal branches of the axon that connect to other neurons. They do not contain Nodes of Ranvier.

3. **Conclusion**: Based on the analysis, the correct answer is **Option 3: Axon**. Nodes of Ranvier are present in the axon of myelinated nerve fibers.

4. **Explanation of Nodes of Ranvier**: These nodes are gaps in the myelin sheath that allow for the rapid conduction of nerve impulses via saltatory conduction. They are formed where Schwann cells do not cover the axon.

5. **Final Answer**: Nodes of Ranvier are found in the **axon**.

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