The crown is the little whorl, usually at the top and back of the head, where the hair grows in a spiral. I have two of those. It looks like a cowlick when the hair is short, or like a bald spot if I part it on the side when it's long. Weirdness.

I don't have a digital camera. Here's the shot StE took of me with his phone on Thanksgiving Saturday at MIL's, though. Right now it's much shorter and slicked back on the sides,a nd upstanding/bedhead on top. The back just looks like well-groomed short hair on a flat head!

Hee. I always liked ponytails, because the silhouette made my head look less flat. But I had to quit wearing them as my hair broke off too easily. A loose pony at the nape was the best I could do. The hair was loose enough to sort of billow out and camoflage the flatness.