Give scientific reasons.
Spinal cord is the most vital part in human body.

Explanation

### Step-by-Step Solution:

1. **Definition and Structure**: The spinal cord is a long, cylindrical structure made up of nervous tissue that runs down the back, encased within the vertebral column (backbone). It is part of the central nervous system, which also includes the brain.

2. **Signal Transmission**: The spinal cord plays a crucial role in transmitting signals between the brain and the rest of the body. It carries motor commands from the brain to the muscles and sensory information from the body back to the brain.

3. **Reflex Actions**: The spinal cord is responsible for reflex actions, which are automatic responses to certain stimuli. For example, if you touch something hot, the spinal cord allows you to quickly withdraw your hand before the brain processes the pain.

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