Articular cartilage.

Of the retropatellar cartilage,

It's movable cartilage.

Cartilage right now.

Check it out. Movable cartilage.

Your cartilage tissues keep proliferating.

Just like building new cartilage.

"No more no less No cartilage...

"No cartilage, no bone, but only flesh."

Clean out some cartilage or something?