Which of the following are correctly matched? linear fracture; the break is perpendicular to the bone's long axis compound fracture; the fractured bone ends penetrate the skin nondisplaced fracture; the fractured bone ends are misaligned incomplete fracture; the bone is broken through

Linear fracture: best match: The bone is broken through.

Explanation:

Linear fractures are clean fractures, that cause no damage to the skin, (a closed fracture), the bone is not crushed, ( a compression fracture) and the brake could run parallel to the long axis of the bone,(a transverse fracture) or just break it through.

I hope it helps!