Give the main function Neurotransmitter in the body of human beings ?

Explanation

### Step-by-Step Solution:

1. **Understanding Neurotransmitters**: Neurotransmitters are chemical substances that play a crucial role in the nervous system. They are responsible for transmitting signals between nerve cells (neurons) and other cells in the body.

2. **Function of Neurotransmitters**: The primary function of neurotransmitters is to facilitate communication within the nervous system. They act as chemical messengers that transmit information from one neuron to another or from neurons to target cells, such as muscle cells or gland cells.

3. **Signal Transmission**: When a nerve impulse reaches the end of a neuron, neurotransmitters are released into the synaptic cleft (the gap between neurons). These neurotransmitters then bind to specific receptors on the target cell, leading to a response.

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