What positioning line is placed perpendicular to the plane of the image receptor for the Parietoacanthial projection of the facial bones?

Situation: A patient enters the ER with a possible fracture of the right zygomatic arch. Which of the following routines would best diagnose a possible fracture of this structure?

Submentovertex, parietoacanthial, and bilateral tangential superoinferior projections
Parietoacanthial, parieto-orbital, and lateral facial bone projections
Modified parietoacanthial, 15° PA Caldwell, and lateral facial bone projections
Submentovertex, bilateral oblique inferosuperior (tangential), and AP axial projections

What positioning line is placed perpendicular to the plane of the image receptor for the Parietoacanthial projection?

skull/facial bones/sinuses/mandible/.

What cranial positioning line should be perpendicular to the image receptor when positioning the patient for a lateral view of the facial bones?

-The orbitomeatal line (OML) of the patient must be perpendicular to the image receptor.

Which of the following is centered to the image receptor for a Parietoacanthial projection of the facial bones?

Facial Nasal Zygomatic Arches Post.

Which plane is perpendicular to the image receptor for a PA axial projection Caldwell method of the sinuses?

Orbitomeatal line is perpendicular to the image receptor (IR).