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| ID: | XAO:0000064 |
| Full Id: | XAO:0000064 |
| Definitions: | Internal, blood pumping organ ultimately composed of three chambers (two atria and one ventricle) and occupying a ventral position within the chest of the mature tadpole/frog. |
| Part Of: | cardiovascular system |
| Subset: | frequent_anatomy_items |
| Xref: | ZFA:0000114 |
| Starts During: | NF stage 33 and 34 |
| Is A: | viscus |
| Sub Class: | endocardium epicardium myocardium cardiac ventricle right atrium left atrium |