| Name: | torus semicircularis |
|---|---|
| Synonyms: | semicircular torus |
| Definition: | Multi-tissue structure that is part of the midbrain and develops from the alar plate. The torus semicircularis is located dorsal to the lateral tegmentum where it extends into the medial tectal ventricle and receives ascending sensory octavolateralis input. |
| Ontology: | Anatomy Ontology [ZFA:0000599] |
| Name: | nucleus |
|---|---|
| Synonyms: | cell nucleus, horsetail nucleus |
| Definition: | A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent. |
| Ontology: | GO: Cellular Component [GO:0005634] QuickGO AmiGO |