Question

If the foramen magnum is NOT well visualized on an AP axial (Towne) projection radiograph of the skull, what must be done to correct it?A. Increase CR angle caudallyB. Decrease CR angle caudallyC. Eliminate CR angleD. Orbitomeatal line is parallel

Answer 1

Answer:

increase CR angle caudally

Explanation:

increasing the CR angle in the caudal region at 15 degrees exposes the foramen magnum and its visualisation is possible only then.