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Neuron

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Diagram showing the structure of a multipolar neuron, a type of nerve cell.

What is a Neuron?

A neuron is a very special kind of cell that helps our bodies send and receive messages. These tiny cells are like little messengers in our nervous system. They help us move, think, and feel things like touch and sound.

How Do Neurons Work?

Neurons talk to each other using tiny electrical signals. These signals travel through long parts of the neuron called axons. Neurons also have branches called dendrites that pick up signals from other cells. When a signal reaches the end of an axon, it can pass a message to another cell through a tiny space called a synapse. Special chemicals help these messages travel.

Where Are Neurons Found?

Neurons are found in all animals, except for very simple creatures like sponges and placozoans. They are the main parts of nervous tissue and are very important for our sense of touch, sight, and sound. Most neurons live in our brain and spinal cord, but some are also in places like our eyes and ears.

Different Types of Neurons

There are three main types of neurons:

  • Sensory neurons bring information from our senses to the brain.
  • Motor neurons tell our muscles to move.
  • Interneurons connect neurons inside the brain and spinal cord.

Each neuron has a special job, and together they help our bodies work smoothly.

Images

Diagram showing the parts of a neuron, including the cell body, dendrites, axon, and a synapse where neurons connect.
A scientific image showing the detailed structure of brain cells from a mouse, highlighting their internal components under a microscope.
Illustration showing how neurotransmitters are released from one nerve cell and bind to receptors on another, helping explain how brain cells communicate.
A diagram showing how nerves connect to muscles, explaining how our body moves.
A scientific illustration of Purkinje cells, important neurons in the human brain, by Santiago Ramón y Cajal.
A colorful microscopic image of a brain cell from a mouse, showing how scientists study the brain.
A diagram showing how messages travel between brain cells, helping us understand how our nervous system works.
A scientific illustration of the hippocampus brain region by Camillo Golgi, showing detailed cell structures.
A scientific drawing of a Purkinje cell in the brain, showing its dendrites and axon.

Related articles

Nervous system
Axon
Sponge
Nervous tissue
Brain
Spinal cord

This article is a child-friendly adaptation of the Wikipedia article on Neuron, available under CC BY-SA 4.0.

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