Warning to the squeamish, stop reading now and skip down to the next entry, a light-hearted one about dementia. Snerk.
CREPITATION - grating sound emanating from the body
Could be creaking knee joints, could be bone fragments from a fracture grinding against each other. I had a test over fractures this week. The general understanding of fracture is just a crack in a bone where a break goes all the way through. Medically they're all fractures, with the extent indicated as complete or incomplete.
How about some fun illustrations of typical fractures?