NEURON FACTS
A neuron (also known as a neurone or nerve cell) is a cell that carries electrical impulses.Neurons are the basic units of the nervous system and its most important part is the brain.
Every neuron is made of a cell body (also called a soma), dendrites and an axon.Dendrites and axons are nerve fibres. There are about 100 billion neurons in the human brain, which comprises roughly 10% of all brain cells. The neurons are supported by glial cells and astrocytes.
Neurons are connected to one another and tissues. They do not touch and instead form synapses. These gaps can be chemical synapses or electrical synapses and pass the signal from one neuron to the next.
The human body is made up of trillions of cells. Cells of the nervous system, called nerve cells or neurons, are specialized to carry "messages" through an electrochemical process. The human brain has approximately 86 billion neurons. To learn how neurons carry messages, read about the action potential.
Neurons come in many different shapes and sizes. Some of the smallest neurons have cell bodies that are only 4 microns wide. Some of the biggest neurons have cell bodies that are 100 microns wide. (Remember that 1 micron is equal to one thousandth of a millimeter).
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