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English: Complete neuron cell diagram. Neurons (also known as neurones and nerve cells) are electrically excitable cells in the nervous system that process and transmit information. In vertebrate animals, neurons are the core components of the brain, spinal cord and peripheral nerves.
The following other wikis use this file: Usage on ar.wikipedia.org جهاز عصبي مركزي; ميالين; إعادة تكون الميالين
The following other wikis use this file: Usage on ca.wikipedia.org Viquiprojecte:Il·lustració científica; Usage on he.wikipedia.org אקסון (סיב עצבי)
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They cannot produce an action potential as generated by a neuron but in their large numbers they can produce chemicals expressing excitability that exert an influence on neural circuitry. [ 7 ] [ 4 ] The star-like shape of the astrocyte allows contact with a great many synapses.
For instance, the soma of a neuron can vary from 4 to 100 micrometers in diameter. [7] The soma is the body of the neuron. As it contains the nucleus, most protein synthesis occurs here. The nucleus can range from 3 to 18 micrometers in diameter. [8] The dendrites of a neuron are cellular extensions with many branches. This overall shape and ...
The following diagram is provided as an overview of and topical guide to the human nervous system: Human nervous system. Human nervous system – the part of the human body that coordinates a person's voluntary and involuntary actions and transmits signals between different parts of the body.
English: Original Text: "This is a diagram of a typical central nervous system synapse. The presynaptic and postsynaptic neuron are on top and bottom. Mitochondria are light green, receptors dark green, postsynaptic density is in grey, Brown pyramids represent protein clusters composing the active zone, cell adhesion molecules are brown rectangles, synaptic vesicles are tan spheres ...