| Name: | hepatocyte | 
|---|---|
| Synonyms: | hepatocytes | 
| Definition: | The main structural component of the liver. They are specialized epithelial cells that are organized into interconnected plates called lobules. | 
| Ontology: | Anatomy Ontology [ZFA:0009111] | 
| Name: | rough endoplasmic reticulum | 
|---|---|
| Synonyms: | RER, rough ER | 
| Definition: | The rough (or granular) endoplasmic reticulum (ER) has ribosomes adhering to the outer surface; the ribosomes are the site of translation of the mRNA for those proteins which are either to be retained within the cisternae (ER-resident proteins), the proteins of the lysosomes, or the proteins destined for export from the cell. Glycoproteins undergo their initial glycosylation within the cisternae. | 
| Ontology: | GO: Cellular Component [GO:0005791] QuickGO AmiGO |