Abstract Aorto-ventricular tunnel is a congenital. extracardiac channel which connects the ascending aorta above the sinutubular junction to the cavity of the left. or (less commonly) right ventricle. The exact incidence is unknown. https://www.ngetikin.com/limited-value-Sapatilha-Infantil-Pampili-Bailarina-Laco-Duplo-Glitter-Prata-great-pick/