medical MCQs – Page 508

Practise multiple-choice questions from medical for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

medical Mcqs

1. oral anatomy 2. microbiology 3. oral pathology and medicine 4. physiology 5. biochemistry 6. general anatomy 7. dental materials 8. pharmacology 9. pathology 10. oral histology

10141. Enamel can act in a sense like a_______________?
0

A. Permeable membrane

B. Impermeable membrane

C. Infrapermeable membrane

D. Semipermeable membrane

10142. All are true about the striae of retzius except___________?
0

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

10143. Cementum that forms in conjunction with root end formation and eruption_____________?
0

A. Cellular cementum

B. Acellular cementum

C. Both of the above

D. None of the above

10144. Dentinogenesis by odontoblasts first begins at_____________?
0

A. Pulpal end

B. Cusp tip

C. Cervical area

D. Tooth bud stage

10145. The component of future T.M.J shows development at _____________?
0

A. 16 weeks

B. 18 weeks

C. 10 weeks

D. 6 weeks

10146. Which of the following is not an ecto-mesenchymal derivative ?
0

A. Enamel

B. Pulp

C. Cementum

D. Dentin

10147. Sharpeys fibres are derived from_____________?
0

A. Alveolar bone

B. Dental follicle

C. Epithelial rests of malassez

D. Hertwigs root sheath

10148. Centre of the disc in TMJ is_____________?
0

A. Avascular & deviod of nervous tissue

B. Avascular

C. None of the above

D. Devoid of nervous tissue

10149. The disturbances occurred during Calcification stage of tooth development is seen in_____________?
0

A. Peg laterals

B. Microdontia

C. Supernumerary tooth

D. Interglobular dentin

10150. Which of the following is correct about enamel crystals ?
0

A. Their diameter is about 5 microns in size

B. Roughly texagonal in shape

C. Same as dentin crystals

D. Contains organic portion in the center

10151. Bundle bone is part of____________?
0

A. Longbones

B. Alveolar bone

C. Periodontal ligament

D. Cementum

10152. Aging process affects pulp tissue by_____________?
0

A. Increase cellular component at the expenses of fibre component

B. Decreasing the size and shape of pulp tissue and cellular component

C. Increases vascularity of the pulp

D. Decrease the calcific component of the pulp

10153. Approximately how many enamel rods will be present in a maxillary molar ?
0

A. 7 million

B. 5 million

C. 9 million

D. 12 million

10154. Intermediate plexus is seen in the____________?
0

A. Cementum

B. Dentin

C. Pulp

D. PDL

10155. Remnants of the Hertwigs root sheath are found in____________?
0

A. Cementum

B. Periodontal ligament

C. Alveolar bone

D. Gingiva

10156. Which of the following is a rare occurrence______________?
0

A. Enamel meet cementum at a point

B. Enamel overlaps cementum

C. Cementum overlaps enamel

D. Both never meet

10157. Intermediate cementum is____________?
0

A. Highly defined cellular zone near cemento dentinal junction (CDJ)

B. Highly defined fibrillar zone near CDJ

C. Poorly defined zone near cemento-dentinal junction

D. Both a and B

10158. Vitality of pulp depends on________________?
0

A. Blood supply

B. Nerve supply

C. Lymphatic supply

D. All of the above

10159. Anchoring fibrills are composed of_____________?
0

A. Type IV collagen

B. Type V and VII collagen

C. Type I and III collagen

D. Type IV and III Collagen

10160. The dental pulp contains nerve endings/receptors for____________?
0

A. Pain

B. Proprioception

C. Temperature

D. Pressure

Previous Next

Showing 10141 to 10160 of 10266 mcqs