Quiz 17: Skull,facial Bones,and Paranasal Sinuses
Medicine
Free
Multiple Choice
C
Q 2Q 2
Which of the following bones are categorized as cranial bones?
1) Maxilla
2) Ethmoid
3) Parietal
A) 1 and 2 only
B) 1 and 3 only
C) 2 and 3 only
D) 1, 2, and 3
Free
Multiple Choice
C
Q 3Q 3
Which of the following cranial bones are paired (right and left)?
1) Frontal
2) Parietal
3) Temporal
A) 1 only
B) 1 and 2 only
C) 2 and 3 only
D) 1, 2, and 3
Free
Multiple Choice
C
Q 4Q 4
The bony prominence on the frontal bone between the eyebrows is called the:
A) acanthion.
B) glabella.
C) gonion.
D) nasion.
Free
Multiple Choice
Q 5Q 5
What is the medical term for the bony sockets that house the eyes?
A) Eye sockets
B) Supraorbital margins
C) Glabella
D) Orbits
Free
Multiple Choice
Q 6Q 6
Which cranial bone is most posterior?
A) Occipital bone
B) Frontal bone
C) Mandible
D) Parietal bone
Free
Multiple Choice
Q 7Q 7
Which cranial bone is most anterior?
A) Occipital bone
B) Frontal bone
C) Parietal bone
D) Temporal bone
Free
Multiple Choice
Q 8Q 8
Which cranial bone has a dense,pyramid of bone that houses the middle and inner ear structures?
A) Occipital bone
B) Frontal bone
C) Parietal bone
D) Temporal bone
Free
Multiple Choice
Q 9Q 9
What does the acronym "EAM" represent?
A) External auditory meatus
B) External anterior mastoid
C) External anterior meatus
D) External acoustic magnum
Free
Multiple Choice
Q 10Q 10
The mastoid process is part of the ______ bone(s).
A) temporal
B) occipital
C) parietal
D) frontal
Free
Multiple Choice
Q 11Q 11
What is the name of the articulation between the mandible and the cranium?
A) Craniomandibular joint
B) Temporomandibular joint
C) Mastomandibular joint
D) Mentomandibular joint
Free
Multiple Choice
Q 12Q 12
What is the term for the articulations between the cranial bones?
A) Glabellae
B) Sutures
C) Acanthions
D) Foramina
Free
Multiple Choice
Q 13Q 13
What is the name of the articulation between the frontal bone and the parietal bones?
A) Squamosal suture
B) Lambdoidal suture
C) Coronal suture
D) Sagittal suture
Free
Multiple Choice
Q 14Q 14
What is the name of the articulation between the parietal bones?
A) Squamosal suture
B) Lambdoidal suture
C) Coronal suture
D) Sagittal suture
Free
Multiple Choice
Q 15Q 15
What is the name of the articulation between the parietal bones and the occipital bone?
A) Squamosal suture
B) Lambdoidal suture
C) Coronal suture
D) Sagittal suture
Free
Multiple Choice
Q 16Q 16
What is the name of the articulation between the parietal bones and temporal bones?
A) Lambdoidal suture
B) Coronal suture
C) Sagittal suture
D) Squamosal suture
Free
Multiple Choice
Q 17Q 17
Where is the coronal suture?
A) Between the frontal and parietal bones
B) Between the right and left parietal bones
C) Between the parietal bones and the temporal bones
D) Between the parietal bones and the occipital bone
Free
Multiple Choice
Q 18Q 18
Where is the sagittal suture?
A) Between the frontal and parietal bones
B) Between the right and left parietal bones
C) Between the parietal bones and the temporal bones
D) Between the parietal bones and the occipital bone
Free
Multiple Choice
Q 19Q 19
Where is the lambdoidal suture?
A) Between the frontal and parietal bones
B) Between the right and left parietal bones
C) Between the parietal bones and the temporal bones
D) Between the parietal bones and the occipital bone
Free
Multiple Choice
Q 20Q 20
Where is the squamosal suture?
A) Between the frontal and parietal bones
B) Between the right and left parietal bones
C) Between the parietal bones and the temporal bones
D) Between the parietal bones and the occipital bone
Free
Multiple Choice
Q 21Q 21
Which of the following is the positioning landmark located at the junction of the nose and the upper lip?
A) Glabella
B) Acanthion
C) Foramen magnum
D) EAM
Free
Multiple Choice
Q 22Q 22
In which bone can the foramen magnum be found?
A) Frontal
B) Temporal
C) Ethmoid
D) Occipital
Free
Multiple Choice
Q 23Q 23
What is the foramen magnum?
A) A large hole in the occipital bone
B) A large hole in the zygoma
C) The articulation between the mandible and the cranium
D) The articulation between the parietal bones
Free
Multiple Choice
Q 24Q 24
What structure serves as the passageway for the spinal cord to exit the skull and pass into the spinal canal of the vertebral column?
A) EAM
B) Foramen magnum
C) Sella turcica
D) Crista galli
Free
Multiple Choice
Q 25Q 25
Which structure houses the pituitary gland?
A) EAM
B) Foramen magnum
C) Sella turcica
D) Crista galli
Free
Multiple Choice
Q 26Q 26
What is the sella turcica?
A) A large hole in the skull that serves as the passageway for the spinal cord to exit the skull
B) The structure that houses the organs for hearing and balance
C) The structure that houses the pituitary gland
D) An accessory sinus that occasionally forms during adolescence
Free
Multiple Choice
Q 27Q 27
The sella turcica is located on the ______ bone.
A) frontal
B) ethmoid
C) occipital
D) sphenoid
Free
Multiple Choice
Free
Multiple Choice
Q 29Q 29
What is contained within the petrous pyramids?
A) Air cells
B) Middle and inner ear structures
C) Pituitary gland
D) Spinal cord
Free
Multiple Choice
Q 30Q 30
The petrous pyramid is a portion of which bone?
A) Sphenoid bone
B) Ethmoid bone
C) Temporal bone
D) Occipital bone
Free
Multiple Choice
Free
Multiple Choice
Q 32Q 32
What common positioning landmark is located on the anterior,lower margin of the mandible?
A) Gonion
B) Glabella
C) Mental protuberance
D) Mental foramen
Free
Multiple Choice
Q 33Q 33
What term is used to identify the angle of the mandible?
A) Mental point
B) Glabella
C) Acanthion
D) Gonion
Free
Multiple Choice
Q 34Q 34
Which of the following are facial bones?
1) Vomer
2) Mandible
3) Ethmoid
A) 1 and 2 only
B) 1 and 3 only
C) 2 and 3 only
D) 1, 2, and 3 only
Free
Multiple Choice
Q 35Q 35
Which facial bones contain the structures that hold the roots of the teeth?
A) Mandible and maxillae
B) Zygoma and maxillae
C) Mandible and zygoma
D) Maxillae and temporal
Free
Multiple Choice
Q 36Q 36
What is the name of the structure that holds the roots of the teeth?
A) Petrous pyramids
B) Gonion
C) Alveolar process
D) Sella turcica
Free
Multiple Choice
Q 37Q 37
Which facial bones help to form the hard palate of the mouth?
A) Vomer
B) Palatine
C) Inferior nasal conchae
D) Lacrimal
Free
Multiple Choice
Q 38Q 38
Which facial bone forms the inferior part of the nasal septum?
A) Palatine
B) Inferior nasal conchae
C) Mandible
D) Vomer
Free
Multiple Choice
Q 39Q 39
Air-filled cavities located in some bones of the face and cranium are called:
A) cranial sutures.
B) zygomatic prominences.
C) paranasal sinuses.
D) paranasal foramina.
Free
Multiple Choice
Q 40Q 40
Which of the following bones contain paranasal sinuses?
1) Frontal
2) Ethmoid
3) Temporal
A) 1 and 2 only
B) 1 and 3 only
C) 2 and 3 only
D) 1, 2, and 3
Free
Multiple Choice
Q 41Q 41
What positioning landmark is located at the inner corner of the eye?
A) Inner canthus
B) EAM
C) Nasion
D) Acanthion
Free
Multiple Choice
Q 42Q 42
The depression on the anterior surface of the skull between the orbits is called the:
A) acanthion.
B) inner canthus.
C) infraorbital margin.
D) nasion.
Free
Multiple Choice
Q 43Q 43
There are several imaginary lines used to position the skull and facial bones. Which imaginary line connects the outer corner of the eye to the EAM?
A) The infraorbitomeatal line
B) The orbitomeatal line
C) The acanthiomeatal line
D) The mentomeatal line
Free
Multiple Choice
Q 44Q 44
When taking a PA axial projection (Caldwell method)of the skull,the central ray is directed:
A) 15 degrees cephalad.
B) 15 degrees caudad.
C) 30 degrees cephalad.
D) 30 degrees caudad.
Free
Multiple Choice
Q 45Q 45
Which radiographic baseline is used to position the PA axial projection (Caldwell method)of the cranium?
A) Either the OML or the IOML
B) Mentomeatal
C) IOML
D) OML
Free
Multiple Choice
Q 46Q 46
What is the proper position of the radiographic baseline for the PA axial projection (Caldwell method)of the cranium?
A) Perpendicular to IR
B) Parallel with IR
C) Perpendicular to CR
D) 37 degrees from IR
Free
Multiple Choice
Q 47Q 47
Which projection of the cranium demonstrates the petrous ridges within the orbits?
A) AP axial (Towne method)
B) PA
C) PA axial (Caldwell method)
D) SMV
Free
Multiple Choice
Q 48Q 48
Which cranial projection best demonstrates the occipital bone?
A) PA
B) PA axial (Caldwell method)
C) AP axial (Towne method)
D) Lateral
Free
Multiple Choice
Q 49Q 49
Which projection of the cranium best demonstrates the frontal bone?
A) AP axial (Towne method)
B) Lateral
C) SMV
D) PA
Free
Multiple Choice
Q 50Q 50
If a patient has received a blow to the right side of the skull about 2 inches above the ear,which of the following demonstrates the possible injury?
A) AP axial (Towne method) and SMV projections
B) PA axial (Caldwell method) and SMV projections
C) PA projection and lateral projection, right side of skull resting on the table
D) PA projection and lateral projection, left side of skull resting on the table
Free
Multiple Choice
Q 51Q 51
The patient is in a prone,oblique position with the midsagittal 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 on the radiograph?
A) Lateral
B) AP axial (Towne method)
C) PA axial (Caldwell method)
D) PA
Free
Multiple Choice
Q 52Q 52
The patient is positioned supine with the midsagittal plane and OML perpendicular to the IR. The CR is angled 30 degrees caudal and enters MSP at approximately 2.5 inches superior to the glabella. What projection is imaged on the radiograph?
A) Lateral
B) PA axial (Caldwell method)
C) PA
D) AP axial (Towne method)
Free
Multiple Choice
Q 53Q 53
Which of the following are disadvantages of an AP projection of the cranium as compared with a PA projection?
1) Cannot be used on injured patients
2) Increased magnification of anterior anatomy
3) Increased radiation dose to eyes
A) 1 and 2 only
B) 1 and 3 only
C) 2 and 3 only
D) 1, 2, and 3
Free
Multiple Choice
Q 54Q 54
Which of the following demonstrates the structures of the cranial base?
A) Lateral
B) PA axial
C) SMV
D) PA
Free
Multiple Choice
Q 55Q 55
What cranial structures are best demonstrated by the SMV projection?
A) The frontal bone and sinuses
B) The cranial base
C) The parietal bones
D) The maxillary sinuses
Free
Multiple Choice
Q 56Q 56
A lateral projection of the face using detail screens tabletop (nongrid)is used to demonstrate the:
A) mandible.
B) zygoma.
C) orbits.
D) nasal bones.
Free
Multiple Choice
Q 57Q 57
Which projection of the facial bones requires the CR to exit the acanthion?
A) AP axial (Towne method)
B) PA axial (Caldwell method)
C) Lateral
D) Parietoacanthial (Waters method)
Free
Multiple Choice
Q 58Q 58
What is the purpose of performing sinus radiography with the patient in the upright position?
A) To demonstrate air/fluid levels
B) For ease of patient positioning
C) To prevent superimposition of the cranial structures on the paranasal sinuses
D) Sinus radiography does not have to be performed with the patient upright.
Free
Multiple Choice
Q 59Q 59
When the patient is supine,the midsagittal plane of the skull is perpendicular to the IR,the orbitomeatal line is perpendicular to the IR,and the central ray is angled 30 degrees caudad,the resulting radiograph demonstrates the:
A) frontal bone.
B) temporal bones.
C) posterior parietal bones and the occipital bone.
D) maxillary sinuses.
Free
Multiple Choice
Q 60Q 60
Which facial bones are demonstrated on the PA axial projection (Caldwell method)?
A) Zygoma and maxilla
B) Orbits and zygoma
C) Nasal bones and orbits
D) Mandible and maxilla
Free
Multiple Choice
Q 61Q 61
Which paranasal sinuses are best demonstrated on the PA axial projection (Caldwell method)?
1) Maxillary
2) Frontal
3) Ethmoid
A) 1 and 2 only
B) 1 and 3 only
C) 2 and 3 only
D) 1, 2, and 3
Free
Multiple Choice
Q 62Q 62
Which of the following projections demonstrates the sphenoid sinus?
A) Parietoacanthial (Waters method)
B) Lateral
C) AP axial (Towne method)
D) PA axial (Caldwell method)
Free
Multiple Choice
Q 63Q 63
Which paranasal sinuses are demonstrated by the parietoacanthial projection (Waters method)?
1) Maxillary
2) Frontal
3) Ethmoid
A) 1 and 2 only
B) 1 and 3 only
C) 2 and 3 only
D) 1, 2, and 3
Free
Multiple Choice
Q 64Q 64
Which projection best demonstrates the maxillary sinuses?
A) Parietoacanthial (Waters method)
B) SMV
C) PA axial (Caldwell method)
D) AP axial (Towne method)
Free
Multiple Choice
Q 65Q 65
Which paranasal sinuses are demonstrated by the lateral projection?
1) Sphenoid
2) Frontal
3) Ethmoid
A) 1 and 2 only
B) 1 and 3 only
C) 2 and 3 only
D) 1, 2, and 3
Free
Multiple Choice
Q 66Q 66
Which paranasal sinuses are demonstrated by the SMV projection?
1) Sphenoid
2) Ethmoid
3) Maxillary
A) 1 and 2 only
B) 1 and 3 only
C) 2 and 3 only
D) 1, 2, and 3
Free
Multiple Choice
Q 67Q 67
Which projection demonstrates all of the paranasal sinuses?
A) PA axial (Caldwell method)
B) Parietoacanthial (Waters method)
C) Lateral
D) SMV
Free
Multiple Choice
Q 68Q 68
What is the proper CR angle and direction for the axiolateral projection of the mandible when MSP of the head is angled 15 degrees toward the IR?
A) 10 degrees cephalic
B) 10 degrees caudal
C) 25 degrees cephalic
D) 25 degrees caudal
Free
Multiple Choice
Q 69Q 69
When the right and left halves of the skull do not appear symmetrical on a PA or AP projection,this is a sign that the:
A) neck is extended too much.
B) neck is flexed too much.
C) sagittal plane is not perpendicular to the IR.
D) central ray is not angled correctly.
Free
Multiple Choice
Q 70Q 70
A blow-out fracture involves the:
A) occipital bone.
B) mandible.
C) nasal bones.
D) floor of the orbit.
Free
Multiple Choice
Q 71Q 71
Which facial bone(s)is (are)most frequently fractured?
A) Nasal bones
B) Zygomatic arches
C) Orbits
D) Mandible
Free
Multiple Choice
Q 72Q 72
Which facial bone often sustains fractures in pairs?
A) Maxilla
B) Mandible
C) Zygoma
D) Vomer
Free
Multiple Choice