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.Management Sciences
Category: Oral Histology
The shallow furrows on the enamel surface, where stria of Retzius end are known as _______________ ?
A. Cracks
B. Pellicle
C. perikymata
D. Enamel lamellae
The class of low molecular weight calcium binding proteins seen predominantly in developing enamel are_____________?
A. Enamelin
B. Amelogenin
C. Tuftelin
D. Ameloplakin
Ratio of diameter of enamel rods in the DEJ to the enamel surface is______________?
A. 1:4
B. 1:1
C. 1:2
D. 2:1
Pure mucous glands are_____________?
A. Labial and buccal glands
B. Glosso palatine & palatine glands
C. Vonebners glands
D. Lingual glands
The vermilion border requires frequent moistening because_____________?
A. It contains more No. of sweat glands
B. It contains more do. of sebaceous glands
C. It contains less number of sebaceous glands
D. It contains less number of sweat glands
Tome’s firbres are____________?
A. With out but not with in the dentin
B. Odontoblastic processes in dental tubules
C. Type of sharpey’s fibres
D. Originate from tome’s granular layer
Transmission of stimulus across dentin is______________?
A. Direct activation of nerve endings
B. Correlated with the innervation density of the dentin
C. Stimulus induced fluid flow
D. There is no transmission of stimulus across dentin
The most abundant group of fibres in the PDL are_____________?
A. Trans-septal
B. Horizontal
C. Oblique
D. Apical
In a dried skull, holes on the lingual aspects of the deciduous teeth are called_____________?
A. Volkmann canals
B. Canals of Hirchfeld and Zuckerland
C. Herversian canals
D. Gubernacular canals
Enamel spindles are formed by______________?
A. Cracks
B. Ameloblasts
C. Odontoblasts
D. Hypocalcified rods
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