| Name: | pronephric duct |
|---|---|
| Synonyms: | pronephric ducts |
| Definition: | Duct of the embryonic kidney, present bilaterally ventral to the somites and leading to the cloacal chamber. Wingert et al. have suggested that the pronephric duct as described traditionally may consist of subregions which are analogous to portions of the tubule segment of mammalian and other fish nephrons. |
| Ontology: | Anatomy Ontology [ZFA:0000150] |
| Name: | epithelial cell |
|---|---|
| Synonyms: | epithelial cells |
| Definition: | A cell that is usually found in a two-dimensional sheet with a free surface. |
| Ontology: | Anatomy Ontology [ZFA:0009034] |
| 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: | microvillus |
|---|---|
| Synonyms: | microvilli |
| Definition: | Thin cylindrical membrane-covered projections on the surface of an animal cell containing a core bundle of actin filaments. Present in especially large numbers on the absorptive surface of intestinal cells. |
| Ontology: | GO: Cellular Component [GO:0005902] QuickGO AmiGO |