| Name: | dorsal root ganglion |
|---|---|
| Synonyms: | dorsal root ganglia, DRG |
| Definition: | Trunk ganglion which is located adjacent to the spine on a dorsal root and contains the cell bodies of afferent sensory nerves. |
| Ontology: | Anatomy Ontology [ZFA:0000200] |
| Name: | lacks parts or has fewer parts of type |
|---|---|
| Synonyms: | loss of |
| Definition: | The bearer of this quality has_part < n of the indicated entity type, where n is the normal amount for a comparable organism. Note that the bearer of the quality is the whole, not the part. Formally: If a bearer entity e has fewer parts of type X at time t, then the number of instances x of X at t such that x part_of e is < n, where n is either the normal number for comparable entities, or n is stated explicitly. This case includes the limit case, where the bearer lacks all parts of the specified type. |
| Ontology: | Phenotypic Quality Ontology [PATO:0001999] |
| Name: | glial cell (sensu Vertebrata) |
|---|---|
| Synonyms: | glial cells (sensu Vertebrata) |
| Definition: | A non-neuronal cells of the nervous system. They not only provide physical support, but also respond to injury, regulate the ionic and chemical composition of the extracellular milieu. Form the myelin insulation of nervous pathways, guide neuronal migration during development, and exchange metabolites with neurons. Neuroglia have high-affinity transmitter uptake systems, voltage-dependent and transmitter-gated ion channels, and can release transmitters, but their role in signaling (as in many other functions) is unclear. |
| Ontology: | Anatomy Ontology [ZFA:0009147] |