Exam 11: Cranium, Facial Bones, and Paranasal Sinuses

What CR angle is required for the axiolateral (Schuller method) projection of the TMJs?

Which of the following structures passes through the superior orbital fissure?

The axiolateral oblique projection (modified Law method) for TMJs requires a ____ rotation of the skull and a ____ caudad angle of the CR.

A radiograph of a parietoacanthial (Waters method) projection reveals that the petrous ridges are superimposed over the lower 30% of the maxillary sinuses.What specific positioning error (if any) led to this radiographic finding?

Which three cranial bones articulate directly with the zygomatic bone?

Which two bones form the bony nasal septum?

The part labeled ii is the:

Which one of the following positioning errors most often results in a repeat exposure of a cranial position?

Select the imaging modality that would best demonstrate the following pathologies. -Hydrocephalus (in neonate)

Which positioning line is perpendicular to the IR for a PA projection of the mandible?

Where is the CR centered for an AP axial (Towne method) projection for the mandible?

Which cranial bone articulates with the other seven cranial bones?

Which of the following terms describes the anterior fontanel found in the adult skull?

What is the only paranasal sinus not contained within a cranial bone?

Which positioning line is placed perpendicular to the IR for the parieto-orbital oblique projection of the optic foramina?

The 15° PA axial (Caldwell) projection for facial bones produces an unobstructed view of the maxilla.

Why is the chin extended for an axiolateral/axiolateral oblique projection of the mandible?

Part 10 is part of which bone?

Match each of the following radiographic appearances with the corresponding pathologic indication.(Use each selection only once.) -Enlarged sella turcica

All of the sinuses intercommunicate with each other and with the nasal cavity.