| Name: | atrium |
|---|---|
| Synonyms: | |
| Definition: | Cavitated compound organ that receives inflow of deoxygenated blood and delivers it to a muscular cardiac ventricle. Valves are present to direct flow. There are only two chambers present in the fish heart. |
| Ontology: | Anatomy Ontology [ZFA:0000471] |
| Name: | Z disc |
|---|---|
| Synonyms: | Z band, Z disk, Z line |
| Definition: | Platelike region of a muscle sarcomere to which the plus ends of actin filaments are attached. |
| Ontology: | GO: Cellular Component [GO:0030018] QuickGO AmiGO |
| Name: | decreased length |
|---|---|
| Synonyms: | short, shortened, stubby |
| Definition: | A length quality which is relatively small. |
| Ontology: | Phenotypic Quality Ontology [PATO:0000574] |