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Ontology Browser

Parent Terms Term With Siblings Child Terms
cauda equina 
central nervous system cell part cluster +  
cuneate fasciculus +  
digestive syncytial vacuole 
entire myelin sheath 
fasciculus of brain +  
fasciculus of spinal cord +  
glial limiting membrane 
gracile fasciculus +  
layer of microvilli +  
luminal layer of epithelium +  
nerve ending +  
nerve fiber +  
A threadlike extension of a nerve cell and consists of an axon and myelin sheath (if it is myelinated) in the nervous system. There are nerve fibers in the central nervous system and peripheral nervous system. A nerve fiber may be myelinated and/or unmyelinated. In the central nervous system (CNS), myelin by oligodendroglia cells is formed. Schwann cells form myelin in the peripheral nervous system (PNS). Schwann cells also make a thin covering in an axon without myelin (in the PNS). A peripheral nerve fiber contains an axon, myelin sheath, schwann cells and its endoneurium. There are no endoneurium and schwann cells in the central nervous system.
nervous system cell part layer +  
neural tube marginal layer +  
neuron projection bundle +  
subluminal layer of epithelium +  

Exact Synonyms: nerve fibre ;   neurofibrum
Related Synonyms: Nerve fibers ;   neurofibra
Xrefs: BAMS:nfi ;   FMA:5914 ;   MESH:D009412 ;   SCTID:88545005 ;   Wikipedia:Nervous_system_fiber
relational_adjective: neurofibrous
External Ontologys: present_in_taxon NCBITaxon:9606
Definition Sources: Wikipedia:Nervous_system_fiber

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