In medullated nerve fibre, the nerve impulse is conducted in wave manner/saltatory manner.

Explanation

### Step-by-Step Solution:

1. **Understanding Medullated Nerve Fibers**:
- Medullated nerve fibers, also known as myelinated fibers, are characterized by the presence of a myelin sheath that insulates the axon. This sheath is formed by Schwann cells and is interrupted at regular intervals by nodes known as the Nodes of Ranvier.

2. **Nerve Impulse Conduction**:
- In these myelinated fibers, the conduction of nerve impulses does not occur continuously along the entire length of the axon. Instead, the action potential jumps from one Node of Ranvier to the next. This process is known as saltatory conduction.

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