The progression of the atrioventricular canal over time, from its formation to the mature structure. The atrioventricular canal is the part of the heart connecting the atrium to the cardiac ventricle. [ http://purl.obolibrary.org/obo/UBERON_0002087 GOC:gr GOC:BHF ZFA:0001315 http://www.ncbi.nlm.nih.gov/pubmed/14701881 ]

This is just here as a test because I lose it