<prompt> Tegmen seperates middle ear from the middle cranial fossa containing temporal lobe of brain by -Medical wall of middle earLateral wall of middle earRoof of middle earAnterior wall of middle ear  <response>: The roof of middle ear is formed by a thin plate of bone called tegmen tympani. It separates tympanic cavity from middle cranial fossa.Tegmen tympani is formed by squamous and petrous part of temporal bone.Q 