Skull

Question 1

Which radiographic baseline is used to position the PA axial projection (Caldwell method) of the cranium?

Answer 1

OML

Question 2

What cranial structures are best demonstrated by the SMV projection?

Answer 2

the cranial base

Question 3

What common positioning landmark is located on the anterior lower margin of the mandible?

Answer 3

mental protuberance

Question 4

Where is the sagittal suture?

Answer 4

between the right and left parietal bones

Question 5

Which of the following bones are categorized as cranial bones? 1. maxilla 2. ethmoid 3.pareital

Answer 5

2 and 3 only

Question 6

The patient is in a prone, oblique position with the midsaggital plane of the head parallel to the IR and the interpupillary line perpendicular to the IR. The CR is directed perpendicular to enter 2 inches superior to the EAM. What projection of the cranium is demonstrated in this radiograph?

Answer 6

lateral

Question 7

Which of the following are facial bones? 1. vomer 2. mandible 3. ethmoid

Answer 7

1 and 2 only

Question 8

Which projection best demonstrates the maxillary sinuses?

Answer 8

parietoacanthial (waters method)

Question 9

The sella turcica is located on the ________ bone

Answer 9

sphenoid

Question 10

Which projection of the cranium demonstrates the petrous ridges within the orbits?

Answer 10

PA

Question 11

Which of the following projections demonstrates the sphenoid sinus?

Answer 11

lateral

Question 12

Which paranasal sinuses are best demonstrated on the PA axial projections (Caldwell method)? 1. maxillary 2. frontal 3. ethmoid

Answer 12

2 and 3 only