name two ways the tympanic bullae can be evauated. give the positioning for each.
if both tympanic bullae need to be evaluated, two oblique lateral radiographs can be used. the animal is placed ina lateral position, and the head is rotated to the affected side. the open-mouthed typanic bullae view can also be used to evaluate the tympanic bullae. the animal is placed in dorsal recumbency, the nose is pointed toward the ceiling, the lower jaw is slightly opened and the beam is centered in the back of the mouth.