Deck 3: Skeletal System

Question 1

After the seventh cranial nerve travels through the petrous part of the temporal bone,through which opening does it exit onto the face?

A)External auditory meatus
B)Jugular notch
C)Foramen spinosum
D)Stylomastoid foramen

Answer 1

D

Question 2

Why is the pterygoid process of the sphenoid bone an important feature of the skull to the dental professionals?

A)Serves as an attachment for the muscles of mastication
B)Serves as an attachment for muscles involved in swallowing
C)Serves as a landmark observed on maxillary posterior periapical radiographs
D)Serves as a landmark observed on mandibular posterior periapical radiographs

Answer 2

A

Question 3

Which of the following external foramina can ONLY be observed from an inferior view of the skull?

A)Hypoglossal canal
B)Foramen ovale
C)Foramen spinosum
D)Stylomastoid foramen

Answer 3

D

Question 4

Which of the following sutures of the skull is an immovable articulation between the occipital bone and the parietal bones?

A)Coronal suture
B)Lambdoidal suture
C)Sagittal suture
D)Squamosal suture

Question 5

Which of the following bony landmarks is a depression located between the coronoid process and the mandibular ramus?

A)Coronoid notch
B)Mandibular notch
C)Mandibular foramen
D)Submandibular fossa

Question 6

The squamosal suture is BEST observed from which view of the skull?

A)Anterior view
B)Inferior view
C)Lateral view
D)Superior view

Question 7

Which of the following landmarks is the MOST inferiorly located on the mandible?

A)Lingula
B)Mylohyoid line
C)Submandibular fossa
D)Retromolar triangle

Question 8

Which of the following bony features listed does NOT serve as an opening in bone?

A)Foramen
B)Canal
C)Sulcus
D)Fissure

Question 9

Through which of the following bony landmarks is the sense of smell carried by olfactory nerves?

A)Crista galli of the ethmoid bone
B)Frontal sinuses of the frontal bone
C)Cribriform plate of the ethmoid bone
D)Perpendicular plate of the ethmoid bone

Question 10

Which of the following bones listed is the ONLY movable bone of the skull?

A)Hyoid bone
B)Mandible
C)Palatine
D)Vomer

Question 11

Which of the following landmarks needs to be noted during the administration of a local anesthetic agent to the maxillary posterior teeth?

A)Infraorbital foramen
B)Retromolar pad
C)Maxillary tuberosity
D)Zygomatic process of the maxilla

Question 12

When viewing the medial surface of the mandible,which of the following bony landmarks CANNOT be observed?

A)Internal oblique ridge
B)Genial tubercles
C)Mandibular foramen
D)Mental foramen

Question 13

Through which bony opening do BOTH the right and left nasopalatine nerves exit onto the palate?

A)Posterior superior alveolar foramina
B)Incisive foramen
C)Greater palatine foramina
D)Lesser palatine foramina

Question 14

Which of the following skull bones are considered to be paired cranial bones?

A)Nasal bones
B)Temporal bones
C)Lacrimal bones
D)Zygomatic bones

Question 15

How does the mandibular condyle move in relationship to the temporal bone?

A)Articular eminence
B)Coronoid notch
C)Articular fossa
D)Mandibular fossa

Question 16

Which of the following paranasal sinuses can be palpated during an extraoral examination by a clinician?

A)Frontal and sphenoidal sinuses
B)Sphenoidal and ethmoidal sinuses
C)Ethmoidal and maxillary sinuses
D)Maxillary and frontal sinuses

Question 17

Which of the following openings within the orbit connects the orbit with the cranial cavity?

A)Cribriform plate
B)Infraorbital foramen
C)Inferior orbital fissure
D)Superior orbital fissure

Question 18

Which of the following bony landmarks is formed by the vertical plates of the palatine bones?

A)Nasal septum
B)Posterior hard palate
C)Lateral walls of the nasal cavity
D)Superior wall of the orbit

Question 19

Which of the following bony features increases the surface area within the nasal cavity?

A)Perpendicular plate of the ethmoid bone
B)Inferior nasal conchae
C)Lacrimal bones
D)Nasal bones

Question 20

Through which of the following openings in the skull does the twelfth cranial nerve pass?

A)Internal acoustic meatus
B)Foramen rotundum
C)Foramen spinosum
D)Hypoglossal canal

Question 21

From the following list of structures,select which structures are associated with the nasal cavity.(Select all that apply. )

A)Nasion
B)Conchae
C)Meatus
D)Fissure
E)Canal

Question 22

From the list below,choose the factors that cause the sphenoid bone to be one of the more difficult bones of the skull to describe and visualize.(Select all that apply. )

A)Bone is only noted from one viewpoint
B)Centrally located within the skull
C)Complex with body and processes
D)Few features and openings

Question 23

Where is the pterygoid process of the skull located?

A)Inferior to the greater wing of the sphenoid bone
B)Posterior to the greater wing of the sphenoid bone
C)Anterior to the greater wing of the sphenoid bone
D)Anterior to the body of the sphenoid bone

Question 24

From the following list of skull bones,select which skull bones are associated with the paranasal sinuses.(Select all that apply. )

A)Occipital bone
B)Mandible
C)Maxillary bone
D)Sphenoid bone
E)Ethmoid bone

Question 25

The differences in alveolar process density determine the easiest and MOST clinically effective region for bony fracture used during tooth extraction,if needed.Thus the maxillary teeth are surgically BEST removed by fracturing the thinner facial cortical plate rather than the thicker lingual cortical plate.

A)Both the statement and reason are correct and related.
B)Both the statement and reason are correct but NOT related.
C)The statement is correct,but the reason is NOT.
D)The statement is NOT correct,but the reason is correct.
E)NEITHER the statement NOR the reason is correct.

Question 26

Which of the following processes forms the lateral part of the infraorbital rim?

A)Temporal process of the zygomatic bone
B)Maxillary process of the zygomatic bone
C)Frontal process of the maxilla
D)Alveolar process of the maxilla

Question 27

From the following list of structures,select which structures are associated with the occipital bone.(Select all that apply. )

A)Condyle
B)Tubercle
C)Notch
D)Glabella
E)Eminence

Question 28

From the following list of structures,select which structures are associated with the frontal bone.(Select all that apply. )

A)Condyle
B)Tubercle
C)Notch
D)Glabella
E)Eminence

Question 29

The pterygopalatine fossa communicates with the middle cranial fossa via the

A)foramen rotundum.
B)superior orbital fissure.
C)foramen ovale.
D)inferior orbital fissure.

Question 30

MATCHING
From the following list of foramina and openings of the sphenoid bone,match these openings with the CORRECT nerve within.
a.Maxillary nerve
b.Ophthalmic nerve
c.Mandibular nerve
d.Meningeal branch nerve
Foramen rotundum

Question 31

From the following list of skull bones,select which skull bones articulate with the ethmoid bone.(Select all that apply. )

A)Frontal bone
B)Sphenoid bone
C)Lacrimal bones
D)Occipital bones
E)Parietal bones

Question 32

MATCHING
From the following list of foramina and openings of the sphenoid bone,match these openings with the CORRECT nerve within.
a.Maxillary nerve
b.Ophthalmic nerve
c.Mandibular nerve
d.Meningeal branch nerve
Superior orbital fissure

Question 33

Inadequate or disproportionate bone growth of the upper face or mandible may leave inadequate room for the developing dentition and cause occlusal complications.How can these difficulties with growth involving the dentition BEST be addressed? (Select all that apply. )

A)Performing osseous surgery
B)Checking for underlying endocrine disorder
C)Undergoing orthodontic therapy
D)Extracting third molars

Question 34

From the following list of structures,select which structures are associated with the petrous part of the temporal bone.(Select all that apply. )

A)Articular fossa
B)Postglenoid fossa
C)External acoustic meatus
D)Mastoid process
E)Carotid canal

Question 35

.The ______ is resorbed with tooth loss,and this loss can be noted on patients radiographically.

A)body of the maxillae
B)body of the mandible
C)base of the mandible
D)alveolar process of the mandible

Question 36

From recent studies concerning chronic sinus infection,new concepts of its etiology and treatment have been discovered.What are these new concepts? (Select all that apply. )

A)Cause lies in the nasal mucus
B)Targeting nasal and sinus tissue
C)Cause lies in the bacterial infection
D)Targeting underlying damaging inflammation

Question 37

MATCHING
From the following list of foramina and openings of the sphenoid bone,match these openings with the CORRECT nerve within.
a.Maxillary nerve
b.Ophthalmic nerve
c.Mandibular nerve
d.Meningeal branch nerve
Foramen spinosum

Question 38

MATCHING
From the following list of foramina and openings of the sphenoid bone,match these openings with the CORRECT nerve within.
a.Maxillary nerve
b.Ophthalmic nerve
c.Mandibular nerve
d.Meningeal branch nerve
Foramen ovale