The lead plate in the panoramic tubehead with an opening shaped like a narrow vertical slit is the:

Question

Quizplus · Accepted Answer

The collimator used in the panoramic x-ray machine is a lead plate with an opening shaped like a narrow vertical slit.
The exposure control allows the operator to adjust the milliamperage and kilovoltage setting.
The cephalostat is a special device that allows the operator to position the film and patient easily.
The focal trough is an imaginary three-dimensional,horseshoe-shaped zone used to focus panoramic radiographs.

The Lead Plate in the Panoramic Tubehead with an Opening