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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 cell autonomous instruction hypothesis states that differentiation into Type I and Type II neurons occur following the last phase of mitotic division but preceding innervations. [9] Both types of neuron participate in the encoding of sound for transmission to the brain.
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Bumped into this at COM:FPC. Clear, technically precise and encyclopedic SVG diagram of a neuron cell. Articles this image appears in Dendrite, Chemical synapse Creator LadyofHats. Discussion of the diagram: Support as nominator — MER-C 04:51, 13 July 2007 (UTC) Support I have a slight preference for the numbered version though.
The Neuronal cell cycle represents the life cycle of the biological cell, its creation, reproduction and eventual death. The process by which cells divide into two daughter cells is called mitosis . Once these cells are formed they enter G1, the phase in which many of the proteins needed to replicate DNA are made.
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Like all animal cells, the cell body of every neuron is enclosed by a plasma membrane, a bilayer of lipid molecules with many types of protein structures embedded in it. [12] A lipid bilayer is a powerful electrical insulator , but in neurons, many of the protein structures embedded in the membrane are electrically active.
Sounds are often sums of multiple frequency tones. When these frequencies are whole number multiples of a fundamental frequency they create a harmonic.When groups of auditory neurons are presented with harmonics, each neuron fires at one frequency and when combined, the entire harmonic is encoded into the primary auditory cortex of the brain.