True Ribs, False Ribs, Floating Ribs (Video)

I am at a coffee shop preparing the transcript for my weekly Easy Feldenkrais session and I had a moment of confusion when the transcript of Moshe's session said,

"Press the middle of your waist in the floor. That is, press the small ribs on the right and left - the floating ribs."

To me, the middle of my waist and my floating ribs are not the same area. So just to clarify my perception a bit, I found a Youtube video to help me get a clearer image. Do you know and can you feel...your "true" ribs, "false" ribs and floating ribs?

The session that I am preparing is based on Alexander Yanai #191:Pressing to the floor and breathing [Breathing rhythmically #7].