| Name: | central canal |
|---|---|
| Synonyms: | canalis centralis, neural lumen |
| Definition: | Spinal cord structure that is part of the ventricular system and is filled with cerebral-spinal fluid and runs the length of the spinal cord. |
| Ontology: | Anatomy Ontology [ZFA:0000938] |
| Name: | cilium |
|---|---|
| Synonyms: | eukaryotic flagellum, flagellum, microtubule-based flagellum |
| Definition: | A specialized eukaryotic organelle that consists of a filiform extrusion of the cell surface and of some cytoplasmic parts. Each cilium is largely bounded by an extrusion of the cytoplasmic (plasma) membrane, and contains a regular longitudinal array of microtubules, anchored to a basal body. |
| Ontology: | GO: Cellular Component [GO:0005929] QuickGO AmiGO |
| Name: | absent |
|---|---|
| Synonyms: | absence, absent from organism |
| Definition: | A quality denoting the lack of an entity. |
| Ontology: | Phenotypic Quality Ontology [PATO:0000462] |