Video narration
A neuron is a nerve cell in your body, built to carry messages fast. You have billions of them in your brain, spinal cord, and nerves. Think of a neuron like a tiny relay. The cell body is the control center. Branchy dendrites are the “inboxes” that receive signals from nearby cells. Then the message travels down a long cable called the axon. If the signal is strong enough, it becomes a quick electrical pulse that moves along the axon in one direction. At the end, the neuron passes the message across a tiny gap to the next cell, so the information keeps moving. That’s how your nervous system helps you sense, think, and react—like pulling your hand back from something hot or moving a muscle on purpose.