When a neuron fires an action potential, electric and chemical signals spread from the axon of one neuron to the dendrites of another neuron across a small gap called the synapse. They allow you to think, feel, move, and comprehend the world around you.Ī neuron is made up of three basic parts: the cell body, or soma branching dendrites that receive signals from other neurons and the axon, which sends signals out to surrounding neurons through the axon terminal. They are building blocks of your brain, and transmit information to other neurons, muscles, and tissues throughout the body.
Neurons are the cells in the brain that send and receive electrical and chemical signals. When you think of the brain, you probably think of neurons. Although neurons are the most famous brain cells, both neurons and glial cells are necessary for proper brain function.
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The average adult human brain contains approximately 100 billion neurons, and just as many-if not more-glia. The most common brain cells are neurons and non-neuron cells called glia. The brain is a mosaic made up of different cell types, each with their own unique properties.
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