Which option describes the quality of motion corresponding to 'Normal: smooth' on the joint integrity descriptors?

• A. Normal: smooth
• B. Grinding: damaged articular cartilage
• C. Crepitus: rough articular cartilage
• D. Boggy: effusion

Answer: (A)

The motion quality being tested is what a healthy joint should feel like during movement. “Normal: smooth” describes motion that is even and unimpeded, with a normal end-feel and no abnormal sounds or sensations. It means the joint moves without grinding, crepitus, or swelling altering the motion, which is what you’d expect in a healthy joint. The other phrases point to problems: grinding indicates a damaged articular surface causing a rough feel during movement; crepitus is a crackling sensation or sound from rough cartilage or gas in the joint; boggy suggests swelling and an effusion that gives a soft, squishy, less controlled motion. So, the descriptor that best matches normal joint motion is the one that says normal and smooth.