Marcus fell off his skateboard and caught himself with his hands. Now his wrist is bent way backward and he cannot straighten it. What would the medical term for this movement be?

The medical term for this movement is "hyperextension."

The medical term for this movement is wrist hyperextension.

The medical term for the movement of wrist being bent way backward is "hyperextension". Hyperextension refers to the excessive extension or straightening of a joint beyond its normal range of motion. In this case, Marcus's wrist is hyperextended due to the force and impact of falling off the skateboard and catching himself with his hands.