Nerve impulses in axon are unidirectional. Give reason.

Explanation

### Step-by-Step Solution:

1. **Understanding Nerve Impulses**: Nerve impulses are electrical signals that travel along the axon of a neuron. They are essential for communication within the nervous system.

2. **Definition of Unidirectional**: The term "unidirectional" means that the nerve impulses move in only one direction along the axon, from the cell body towards the axon terminals.

3. **Role of Neurotransmitters**: Neurotransmitters are chemical messengers that are released from the axon terminals of one neuron and bind to specific receptors on the next neuron.

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