Formation of Semilunar Valves: Part 1

Part one of this video talks about the development or pulmonary and aortic orifices with their respective cusps (endocardial cushions) from the truncocordal junction. Timeline: 0:00 - Introduction 0:22 - Development of endocardial cushions at truncocordal junction 3:27 - Development of distal bulbar septum 5:05 - Formation of pulmonary and aortic orifices with three cusps each