What is neuron?

  • (noun): A cell that is specialized to conduct nerve impulses.
    Synonyms: nerve cell


A neuron ( /ˈnjʊərɒn/ NEWR-on; also known as a neurone or nerve cell) is an electrically excitable cell that processes and transmits information through electrical and chemical signals. A chemical signal occurs via a synapse, a specialized connection with other cells. Neurons connect to each other to form neural networks. Neurons are the core components of the nervous system, which includes the brain, spinal cord, and peripheral ganglia. A number of specialized types of neurons exist: sensory neurons respond to touch, sound, light and numerous other stimuli affecting cells of the sensory organs that then send signals to the spinal cord and brain. Motor neurons receive signals from the brain and spinal cord, cause muscle contractions, and affect glands. Interneurons connect neurons to other neurons within the same region of the brain or spinal cord.

Read more about Neuron.

Some articles on neuron:

Summation (neurophysiology) - Types
... At any given moment, a neuron may be receiving postsynaptic potentials from thousands of other neurons ... is reached, and an action potential generated, is dependent upon the spatial (from multiple neurons) and temporal summation (from a single neuron) of all ... The closer a synapse is to the cell body of a neuron, the greater the influence on the final summation ...
Spatio Temporal Receptive Field
... The spatio temporal receptive field (STRF) of a neuron represents which types of stimuli excite or inhibit that neuron ... If linearity is assumed, the neuron can be modelled as having a time-varying firing rate equal to the convolution of the stimulus with the STRF ...
Neuron - Nerve Regeneration
... However, more recent studies of the age of human neurons suggest that this process occurs only for a minority of cells, and the overwhelming majority of ...
Spinal Neuron
... A spinal neuron is a neuron in the spinal cord. ...
Madras Motor Neuron Disease
... Madras motor neuron disease is a form of motor neuron disease closely related to the Brown-Vialetto-Van Laere and Boltshauser syndromes ...