The functional structure of the Eustachian valve.
D002648:Child; D006325:Heart Atria; D006351:Heart Valves; D006801:Humans; D007223:Infant; D007231:Infant, Newborn / Q000502:physiology; D014682:Vena Cava, Inferior
HEART VALVES/in infancy and childhood; INFANT, NEWBORN/physiology