ef1da23cbc Neurons are classified both functionally and structurally. 119 (1): abstract. White matter, containing myelinated axons, connects and facilitates nerve impulse between grey matter areas in the CNS.[13] In the PNS, the ganglion tissue, containing the cell bodies and dendrites, contain relay points for nerve tissue impulses. Dendrites are thin, branching projections that receive electrochemical signaling (neurotransmitters) to create a change in voltage in the cell. Oxford University Press. doi:10.1016/j.brainresrev.2010.04.009. Neurons are cells with specialized features that allow them to receive and facilitate nerve impulses, or action potentials, across their membrane to the next neuron.[2] They possess a large cell body (soma,perikaryon,cyton), with cell projections called dendrites and an axon. University of Michigan Medical School. ^ "Nervous Tissue".
Components[edit]. Nervous tissue is composed of neurons, also called nerve cells, and neuroglial cells. Nervous tissue Example of nervous tissue Cells of nervous tissue Anatomical terminology [edit on Wikidata] . Structure[edit]. Retrieved 27 January 2015. They form myelin sheaths on the axons of a neuron, which are lipid-based insulation that increases the speed at which the action potential, can travel down the axon.[4] NG2 glia: CNS cells that are distinct from astrocytes, oligodendrocytes, and microglia, and serve as the developmental precursors of oligodendrocytes[5] Schwann cells: The PNS equivalent of oligodendrocytes, they help maintain axons and form myelin sheaths in the PNS.[4] Satellite glial cell: Line the surface of neuron cell bodies in ganglia (groups of nerve body cells bundled or connected together in the PNS)[8] Enteric glia: Found in the enteric nervous system, within the gastrointestinal tract.[9] . Classification of Tissue[edit]. The epineurium is the outermost layer of dense connective tissue enclosing the (peripheral) nerve. Axons are long projections that carry the action potential away from the cell body toward the next neuron.
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