| Name: | intestinal epithelium |
|---|---|
| Synonyms: | intestine epithelium, villous epithelium |
| Definition: | Simple columnar epithelium that lines the intestine, sometimes pseudostratified, with absorptive brush-border cells and mucous goblet cells clearly visible. |
| Ontology: | Anatomy Ontology [ZFA:0005124] |
| Name: | endoplasmic reticulum |
|---|---|
| Synonyms: | ER |
| Definition: | The irregular network of unit membranes, visible only by electron microscopy, that occurs in the cytoplasm of many eukaryotic cells. The membranes form a complex meshwork of tubular channels, which are often expanded into slitlike cavities called cisternae. The ER takes two forms, rough (or granular), with ribosomes adhering to the outer surface, and smooth (with no ribosomes attached). |
| Ontology: | GO: Cellular Component [GO:0005783] QuickGO AmiGO |