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.Management Sciences
Category: Oral Histology
All of the following cells of periodontal ligament are of mesenchymal origin except______________?
A. Fibroblasts
B. Multi totipotent cells
C. Cementoblasts
D. Cell rests of malassez
Cells of the spinous layer are generally_______________?
A. Larger than the basal cells
B. Smaller than the basal cells
C. same size as that of basal cells
D. None of the above
The oral epithelium is attached to the enamel via_______________?
A. Reticular fibers
B. Collagen fibers
C. Hemidesmosomes
D. Desmosomes
The primary function of the dental pulp is____________?
A. Nutritive
B. Production of dentin
C. Production of enamel
D. Vascular supply to the teeth
Which of the following is not correct?
A. Free denticles are entirely surrounded by pulp tissue(free of dentin)
B. Embedded denticles are entirely surrounded by dentin (embedded in dentin)
C. Attached denticles are partly fused with dentin
D. False denticles contains many dentinal tubules
Lip furrow band is______________?
A. Vestibular lamina
B. Successional lamina
C. Dental lamina
D. Basal lamina
Blood supply of ameloblast for most of its life cycle comes form_______________?
A. Dental papilla
B. Reduced enamel organ
C. Dental Sac
D. Dental pulp
Neonatal line is also referred to as______________?
A. Retzius line
B. Line of cross striations
C. Incremental lines
D. Line of enamel tufts
Fibres of periodontal ligament embedded in the bone are_____________?
A. Sharpey’s fibres
B. Tomes fibres
C. Elastic fibres
D. Ray’s fibres
The vascular supply of the periodontal ligament is______________?
A. Greatest in the middle-third of a single rotted tooth
B. Greatest in the middle-third of a multirooted tooth
C. A net like plexus that runs closer to the cementum than to the bone
D. A net like plexus that runs closer to the bone than to the cementum
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