A. Constitute the rest lines with in the enamel rods
B. Have high inorganic content
C. They are areas of increased porosity
D. Allow the movement of water and small ions
Related Mcqs:
- Wickham’s striae are seen in:__________?
A. Lichen planus
B. Leukoplakia
C. Leukoedema
D. Erythema multiformae - Incremental lines of Retzius appear_____________?
A. As lines in the enamel running at right angles to the enamel surface
B. As lines in the dentin running at right angles to the dentino-enamel junction
C. In enamel and follow the apposition pattern
D. In dentin and follow the appositional pattern - Incremental lines of retzius are seen in______________?
A. Enamel
B. Dentin
C. Cementum
D. Pulp - The shallow furrows on the enamel surface, where stria of Retzius end are known as _______________ ?
A. Cracks
B. Pellicle
C. perikymata
D. Enamel lamellae - Following are local hormones except___________?
A. Insulin
B. Heparin
C. Bradykinin
D. Acetylcholine - In vitamin A deficiency, patient complains of all of the following except___________?
A. Night blindness
B. Xerophthalmia
C. Keratosis
D. Phophoric calciuria - All are genetic amino acid deficiency disease except___________?
A. Phenyl ketonuria
B. Alkaptonuria
C. Homocystinuria
D. 6alactosemia - The characteristic cells of chronic inflammation are all except___________?
A. Plasma cells
B. Macrophages
C. Lymphocytes
D. PMN’s - All the following increases drug metabolism by activating cytochrome enzyme, EXCEPT___________?
A. Tetracycline
B. Cimetidine
C. Rifampicin
D. Phenobarbitone - Hypodontia is mainly found in all except___________?
A. Papillion levefre syndrome
B. Osteopetrosis
C. Cleidocranialdysostosis
D. Ectodermal dysplasia
