A midcoronal (or midaxillary) plane runs vertically or longitudinally from right to left, dividing the body into equal anterior and posterior parts

A Class II BSC provides maximum protection to the environment and worker

Indicate whether the statement is true or false

For a PA axial cranial projection (Caldwell method), the

1. midsagittal plane is aligned perpendicular to the IR. 2. central ray is angled 15 degrees caudally. 3. OML is aligned perpendicular to the IR. 4. central ray is centered to the nasion. a. 1 and 3 only b. 2 and 4 only c. 2, 3, and 4 only d. 1, 2, 3, and 4