Hi George, thank you for your question. As you are looking at the diagram on the left at 2:42, the right coronary cusp is the "leaflet" on the left, and the non-coronary cusp is the "leaflet" on the right. You can see the two cusps represented on the ultrasound image next to the arrow labeled "Aortic Valve," where the right coronary cusp is on the top near the arrow and the non-coronary cusp is just below that.
ty for the video i got this done on my heart not long ago and was diagnosed with pulmonary hypertension. i couldnt see the screen so i was jus watching my mum in shock at my heart all i heard was " is that her heart? all those parts opening and closing.. thats so wierd." i was thinking.. what is she looking at sounds like im an alien or something lol . now i know and can see for myself lol thanks :D
When I had the ultrasound I was struck with how untidy the heart is. Its an impressive organ for sure and Im happy to have one its just that it looked so dumpy to me. The valve action was so clunky and the tissue frayed and imprecise. I have a normal healthy heart btw Im just saying that I think we could design a better heart if we had the ability to grow new ones.