What do you mean by saltatory conduction of nerve impulse?

Explanation

**Step-by-Step Solution:**

1. **Definition of Saltatory Conduction**: Saltatory conduction refers to the process by which nerve impulses are transmitted along myelinated nerve fibers. In this process, the impulse "jumps" from one node of Ranvier to another, rather than traveling continuously along the entire length of the axon.

2. **Structure of Myelinated Nerve Fibers**: Myelinated nerve fibers are covered by a protective layer known as the myelin sheath. This sheath is composed of lipids and proteins and serves to insulate the axon, preventing the loss of electrical signals.

3. **Role of Nodes of Ranvier**: Between segments of the myelin sheath, there are small gaps called the nodes of Ranvier. These nodes are crucial for saltatory conduction as they allow the nerve impulse to be regenerated at these points.

...