| Name: | cardiac ventricle |
|---|---|
| Synonyms: | ventricle |
| Definition: | Cavitated compound organ that receives blood flow from the atrium and delivers blood to the body via the aorta. Valves are present to direct flow. There are only two chambers present in the fish heart. |
| Ontology: | Anatomy Ontology [ZFA:0000009] |
| Name: | I band |
|---|---|
| Synonyms: | I disc, isotropic disc, J disc |
| Definition: | A region of a sarcomere that appears as a light band on each side of the Z disc, comprising a region of the sarcomere where thin (actin) filaments are not overlapped by thick (myosin) filaments; contains actin, troponin, and tropomyosin; each sarcomere includes half of an I band at each end. |
| Ontology: | GO: Cellular Component [GO:0031674] QuickGO AmiGO |