====== Signal ======
A [[neuron]] (also known as a neurone or nerve cell) is an electrically excitable [[cell]] that processes and transmits information through electrical and chemical [[signal]]s. 

Our brains have about a hundred billion [[neuron]]s that fire signals to communicate with each other all the time. These signals are electrochemical in nature, and travel from the cell body of a neuron through its transport stalk or the [[axon]], to the next neuron – similar to passing the baton in a relay race. Every such firing signal is referred to as a [[spike]], or an [[action potential]]. Spikes are produced in response to stimuli or spontaneously, and each spike typically lasts for 1 millisecond.

Neurons produce action potentials that are referred to as '[[spike]]s' in laboratory jargon. Frequently this term is used for electrical signals recorded in the vicinity of individual neurons with a microelectrode (exception: 'spikes' in EEG recordings)

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[[Signal intensity]]
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see [[Cell signaling]].

see [[Neural signal]].

see [[Signal transducer]].

see [[MR signal]]