What is Neuron? Definition, Meaning & Example
A specialized cell that transmits electrical and chemical signals throughout the body, forming the basic unit of the nervous system.
TL;DR: A specialized cell that transmits electrical and chemical signals throughout the body, forming the basic unit of the nervous system.
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Neuron: A specialized cell that transmits electrical and chemical signals throughout the body, forming the basic unit of the nervous system.
Explanation
Neurons have a cell body, dendrites that receive signals, and an axon that sends signals. Neurons communicate with each other through synapses. The brain contains billions of neurons.
Example
When you touch a hot surface, sensory neurons in your skin send a signal to your brain, which sends a signal back to muscles to pull your hand away.
Frequently Asked Questions
What are the three types of neurons?
The three types are sensory neurons that carry signals to the brain, motor neurons that carry signals from the brain to muscles, and interneurons that connect neurons to each other.
How do neurons communicate?
Neurons communicate across synapses by releasing chemical messengers called neurotransmitters.
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