<prompt> Blowout injury refers to whatFracture of orbitFracture of maxillary antrumFracture of temporal boneOpen Fracture from inside out of a long bone  <response>: The floor of orbit is its weakest wall and in blunt trauma such as a blow from a fist ,it is often fractured without fractures of the other walls.This is called blow-out fracture Bailey Love ,26th,627. 