QUESTION 1
Which of the following statements about the dental sac is false?
It ultimately forms the fibrous sac which protects enamel
Dental follicle cells give rise to the cementum and ligament
Perifollicular mesenchyme cells give rise to bone
The dental sac is formed from mesodermal cells
More than one of the above is false
QUESTION 2
Cementum...
is the hardest tissue in the body
is thinnest at the apical foramen
is composed of acellular cementum at its apical two-thirds
has different types one of which is intermediate cementum
lines the dentin along the pulp
QUESTION 3
Regarding periodontal ligament fibres...
alveolar crest group inserts on the cementum below its origin on the alveolar bone
oblique is a small group of fibres found near the apical foremen
the interradicular group connects adjacent teeth
the oblique group runs from the alveolar bone downward to insert in cementum
more than one of the above is correct
QUESTION 4
Concerning mucous membranes...
the oral mucous membrane contains a small submucosa filled with fatty tissue
the oral mucosa of the cheek is a keratinized lining mucosa
the epithelium of the inferior surface of the tongue is composed of three cell types
floor of the mouth contains a large lamina propria filled will salivary glands
the soft palate contains an aponeurosis between the epithelium and lamina propria
QUESTION 5
Concerning the gingiva...
10% of the gingiva is parakeratimzed
mucogingival line separates the free gingiva from the attached
transseptal fibres travel horizontally in the tissue from one tooth to the adjacent tooth
melanocytes are found in the basal layer and play a role in the immune response
dentogingival fibres travel from the dentin to the alveolar bone
QUESTION 6
Which of the following statements about the TMJ are false?
the head of the condyle is covered by fibrous connective tissue
there is no secondary centre of ossification
blood vessels enter the head of the condyle
parallel fibres are found on the periphery of the articular disc
pseudocavernous spaces are false spaces in the retrodiscal pad whose function is unknown
QUESTION 7
Which statement concerning salivary glands is true?
the parotid is mixed
the submandibular is mixed but predominantly mucous
sublingual is mixed but predominantly mucous
mucous cells form demilunes of Guinnuzzi
the presence of a capsule around the sublingual gland prevents the spread of infection
QUESTION 8
The maxillary sinus...
is covered by stratified squamous non-keratinized epithelium
is connected to the orbit
is lined by the Schneiderian membrane
can also be called the antrum of Davis
often contains the roots of the central incisors