A. Formation of dentin
B. Nerve supply to dentin
C. Sends impulses to CNS
D. Nerve supply to enamel through fibres
✅ The correct answer is option D. Nerve supply to enamel through fibres.
Oral Histology
152. Keratohyaline granules are more evident in_______________?
A. Keratinised
B. Non keratinized
C. Parakeratinised
D. Orthokeratinized
✅ The correct answer is option D. Orthokeratinized.
153. 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
✅ The correct answer is option B. Odontoblastic processes in dental tubules.
154. First appearance of tooth formation occurs in____________?
A. 6th week IU
B. 2nd week IU
C. 9th week IU
D. 4th week IU
✅ The correct answer is option A. 6th week IU.
155. Inorganic content of enamel is about______________?
A. 35%
B. 50%
C. 4%
D. 96%
✅ The correct answer is option D. 96%.
156. Minor salivary glands are present in the submucosa through out the oral mucosa except for the______________?
A. Gingiva and anterior part of hard palate
B. Tongue and soft palate
C. Retromolar area and hard palate
D. Lip and posterior third of the hard palate
✅ The correct answer is option A. Gingiva and anterior part of hard palate.
157. The average width of enamel rods is______________?
A. 10mm
B. 5mm
C. 2mm
D. 0.5mm
✅ The correct answer is option B. 5mm.
158. Pure mucous glands are_____________?
A. Labial and buccal glands
B. Glosso palatine & palatine glands
C. Vonebners glands
D. Lingual glands
✅ The correct answer is option B. Glosso palatine & palatine glands.
159. Mucin in mucous cells usually demonstrated by______________?
A. PAP stain
B. H & E stain
C. Mucicarmine stain
D. Mallory stain
✅ The correct answer is option C. Mucicarmine stain.
160. The dental pulp contains nerve endings/receptors for____________?
A. Pain
B. Pressure
C. Proprioception
D. Temperature
✅ The correct answer is option A. Pain.