Exam 20: Skull, Facial Bones, and Paranasal Sinuses

The OML forms an angle of how many degrees from the plane of the image receptor for an open-mouth parietoacanthial (Waters method) projection?

The bone identified in the figure below is the:

At which level should the central ray enter the base of the skull for the SMV projection of the sinuses?

Which facial bone contains a foramen through which the tear duct passes?

Letter G in the diagram below of the orbit labels the:

The letter F in the image below of the paranasal sinuses labels the:

The cranial bones are rigidly jointed together by articulations called:

Letter B in the diagram below of the orbit labels the:

Which of the following should be clearly demonstrated on a lateral projection of the paranasal sinus? 1)All four sinus groups 2)Superimposed orbital roofs 3)Superimposed mandibular rami

Which of the following lines is placed as nearly parallel to the image receptor as possible for the SMV projection of the zygomatic arches?

Which of the following lines is placed perpendicular to the image receptor plane for the AP axial (Towne) projection?

Often a patient cannot be turned into the prone position for a PA axial projection of the skull (Caldwell method). What central-ray angle would be used if the AP axial projection is used instead?

The letter C in the image below of the paranasal sinuses labels the:

What is the central-ray angulation for the PA axial projection of the mandibular rami?

All of the following are cranial bones except the:

How many bones make up the face?