Answer:
The head must be in a true lateral position to demonstrate the ramus of the mandible.
Step-by-step explanation:
The head must be placed in a lateral position where the area of interest is located against the image receptor (IM). The mouth must be closed and teeth together. To demonstrate the ramus of the mandible, the head must be in a true lateral position with the chin extended, and central ray (CR) angled 25º cephalic.