Deck 3: Skeletal System

Question 1

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

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

Answer 1

B

Question 2

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

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

Answer 2

D

Question 3

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

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

Answer 3

B

Question 4

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 5

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 6

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 7

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

Question 8

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 9

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

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

Question 10

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

Question 11

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 12

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

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

Question 13

By which of the following sutures of the skull do the occipital bone and parietal bones articulate with one another?

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

Question 14

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

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 bones listed is the ONLY movable bone of the skull?

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

Question 17

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 18

Which of the following paranasal sinuses have the area over them that can be palpated during an extraoral examination?

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

Question 19

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 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 skull bones, select which skull bones articulate with the ethmoid bone.

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

Question 22

From the following list of structures, select which structures are associated with the nasal cavity.

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

Question 23

From the following list of structures, select which structures are associated with the petrous part of the temporal bone.

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

Question 24

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 25

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 26

From the following list of skull bones, select which skull bones are associated with the paranasal sinuses.

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

Question 27

From the following list of structures, select which structures are associated with the occipital bone.

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.

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

Question 29

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 30

The differences in alveolar process density determine the easiest and MOST convenient areas of bony fracture used during tooth extraction, if needed. Thus the maxillary teeth are easier to remove by fracturing the thinner facial surface rather than the thicker lingual surface.

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 31

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

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