<prompt> Answer this question truthfullyWhat does the atrioventricular canal mean?  <response>: <reason> Images shown below are courtesy of Professor Peter Anderson DVM PhD and published with permission PEIR, University of Alabama at Birmingham, Department of PathologyAtrioventricular Canal: Gross right ventricular view of canal defect Atrioventricular Canal: Gross left ventricle view of canal defect very good example Atrioventricular Canal: Gross an excellent example of very large lesion Atrioventricular Canal: Gross infant heart well shown Atrioventricular Canal Atrioventricular Canal Atrioventricular Canal: Gross patch repair of defect seen from left side showing left atrial portion extending into a cleft mitral valve Atrioventricular Canal: Gross corrected defect with patch viewed from left side atrium and cleft mitral valve Atrioventricular Canal: Gross fixed tissue opened LV showing large A component and apparently small V component now repaired with a patch of pericardium single valve case 11mo old male operative death Atrioventricular Canal: Gross fixed tissue close-up view of A and V components closed with pericardial patch photo shows deformed left atrioventricular valve leaflet up a close view and very good demonstration Atrioventricular Canal: Gross fixed tissue rather good view of this lesion from the opened left atrium and ventricle Congenital heart disease, artrio-ventricular AV canal Congenital heart disease, artrio-ventricular AV canal Congenital heart disease, artrio-ventricular AV canal Av Canal with Left Side Bjork Shiley Prosthetic Valve: Gross, natural color, a close-up view of valve and the bridging defect 