Exam 20: Skull, Facial Bones, and Paranasal Sinuses

Which reference line is positioned horizontal to ensure proper extension of the head during a lateral projection of the sinuses?

Which of the following is located in the middle ear?

Which parts of the patient's face touch the table for a PA axial projection (Caldwell method)? 1)Forehead 2)Nose 3)Chin

The parietoacanthial projection of the facial bones is commonly called the _____ method.

What is the central-ray angulation for the AP axial projection of the TMJ?

The landmark identified in the figure below is termed the:

How many bones are contained in the skull?

The maxillary sinus is located in which bone?

Which skull suture is found between the frontal and parietal bones?

The axiolateral oblique projection is used to demonstrate the mandible. How is the head positioned to demonstrate the symphysis of the mandible?

Which of the following foramina lie in the sphenoid bone? 1)Optic foramen 2)Jugular foramen 3)Foramina rotundum

The orbit is made up of _____ cranial bones and _____ facial bones.

For the tangential projection of the zygomatic arch, the central ray is directed perpendicular to the _____ line.

Letter A in the image below used to evaluate the cranium labels the:

Which of the following must be projected below the maxillary sinuses for the parietoacanthial projection (Waters method) of the sinuses?

Which of the following bones is contained in the floor of the cranium? 1)Ethmoid 2)Sphenoid 3)Temporal

The letter A in the image below of the paranasal sinuses labels the _____ sinuses.

Trauma patients may arrive in the radiology department with their head immobilized. A reverse Waters method can always be performed on these patients by adjusting the central ray parallel to the _____ line.

The parietoacanthial projection (Waters method) of the facial bones is often modified so that there is less angulation of the facial bones. For this modification, the orbitomeatal line is adjusted to _____ degrees.

If the patient cannot flex the neck to place the orbitomeatal line perpendicular to the image receptor for an AP axial (Towne) projection, which line should be placed perpendicular?