Skull

Question 1

What is the name of the articulation between the frontal bone and the parietal bones?

Answer 1

Coronal suture

Question 2

Which facial bones are demonstrated on the PA Axial projection (Caldwell)?

Answer 2

Orbits and zygoma

Question 3

When taking a PA axial projection (Caldwell) of the skull, the CR is directed

Answer 3

15 degrees caudad

Question 4

What is the name of the articulation between the parietal bones

Answer 4

Sagittal suture

Question 5

Where is the squamosal suture?

Answer 5

Between the parietal and temporal bones

Question 6

Which projection demonstrates all of the paranasal sinuses?

Answer 6

Lateral

Question 7

What term is used to identify the angle of the mandible?

Answer 7

Gonion

Question 8

The petrous pyramid is a portion of which bone?

Answer 8

Temporal bone

Question 9

A blowout fracture involves the

Answer 9

Floor of the orbit

Question 10

Which facial bone forms the inferior part of the nasal septum

Answer 10

Vomer

Question 11

Air filled cavities located in some bones of the face and cranium are called

Answer 11

Paranasal sinuses

Question 12

Which facial bones help to form the hard palate of the mouth?

Answer 12

Palatine

Question 13

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

Answer 13

PA

Question 14

Which facial bones are most frequently fractured?

Answer 14

Nasal bones

Question 15

Which structure houses the pituitary gland

Answer 15

Sella turcica

Question 16

What is the purpose of performing sinus radiography with the patient in the upright position

Answer 16

To demonstrate air fluid levels

Question 17

What is the name of the articulation between the mandible and the cranium?

Answer 17

Temporomandibular joint

Question 18

Which projection demonstrates the frontal bone with minimal distortion and superimposition?

Answer 18

PA axial projection, Caldwell

Question 19

The articulation of the frontal bone with the nasal bones is known as the

Answer 19

Nasion

Question 20

On a properly positioned PA axial projection of the skull (Caldwell), the CR exits at the level of the

Answer 20

Nasion

Question 21

Which facial bone is found in the medial wall of the orbit between the ethmoid and maxilla?

Answer 21

Lacrimal

Question 22

Which cranial bone is best visualized on the AP axial projection (Towne) of the skull?

Answer 22

Occipital bone

Question 23

How should the CR be directed on a PA (Caldwell) of the sinuses?

Answer 23

Horizontal

Question 24

On a parietoacanthial projection of the paranasal sinuses, Waters method, the petrous ridges should

Answer 24

Be projected below the maxillary sinuses

Question 25

In which bone are the optic foramina located?

Answer 25

Sphenoid

Question 26

The pterygoid process is a part of which bone?

Answer 26

Sphenoid

Question 27

Which group of paranasal sinuses is located directly inferior and anterior to the sella turcica?

Answer 27

Sphenoidal

Question 28

In the parietoacanthial projection (modified waters), the CR passes through the patients mouth, shows which paranasal sinuses?

Answer 28

Sphenoid

Question 29

When performing a lateral projection to evaluate facial bones, the CR enters

Answer 29

Midway between outer canthus and EAM

Question 30

The hard palate is formed by which two bones?

Answer 30

Maxilla and palatine

Question 31

A PA projection of the skull (Caldwell) projects the petrous ridges

Answer 31

In the lower third of the orbits

Question 32

Which cranial bone contains a petrous portion and mastoid air cells?

Answer 32

Temporal

Question 33

Which three bones does the temporal bone articulate?

Answer 33

Parietal, occipital, sphenoid

Question 34

Which projection requires the patient to extend the neck until the IOML is parallel to the IR?

Answer 34

SMV

Question 35

Which sinuses are visualized on a properly positioned lateral projection radiograph?

Answer 35

Ethmoid, frontal, maxillary, sphenoid (all)

Question 36

What radiographic positioning landmark corresponds to the location of the anterior nasal spine?

Answer 36

Acanthion

Question 37

Which most commonly positioning landmark is located at the anterior lower margin of the mandible?

Answer 37

Mental protuberance

Question 38

Which projection demonstrates the sphenoid sinus?

Answer 38

lateral

Question 39

Which cranial bone houses the middle ear structures?

Answer 39

Temporal

Question 40

Which bones contain paranasal sinuses?

Answer 40

Frontal, ethmoid

Question 41

Mastoid process is a process of which bone?

Answer 41

Temporal

Question 42

Patient is prone oblique position with MSP of head parallel to IR, CR 2in above EAM. What projection is this?

Answer 42

Lateral cranium

Question 43

The foramen magnum is on which cranial bone?

Answer 43

Occipital

Question 44

Which imaginary line used to position the skull and facial bones connects the outer corner of the eye to the EAM

Answer 44

OML

Question 45

Patient is supine, MSP and OML perpendicular to IR, CR is 30 degrees caudad, 2/12in

Answer 45

AP Axial

Question 46

Patient is supine and MSP of the skull is perpendicular to the IR. CR angled 30 degrees caudad. What position is this?

Answer 46

AP Towne

Question 47

Which facial bones hold the teeth?

Answer 47

Mandible, Maxilla

Question 48

Proper position of the radiographic baseline for PA Axial Caldwell projection of the cranium?

Answer 48

OML & sagittal plane perpendicular to IR

Question 49

Which sinuses are demonstrated by the waters method?

Answer 49

Maxillary sinus and paranasal sinus