medical MCQs – Page 497

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 Review each marked answer and report any item that may be outdated or unclear.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

9921. Pure mucous glands are_____________?
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A. Vonebners glands

B. Labial and buccal glands

C. Glosso palatine & palatine glands

D. Lingual glands

9922. Mature bone is otherwise called as______________?
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A. Irregular bone

B. Lamellar bone

C. Resorbing bone

D. woven bone

9923. Mandible develops by______________?
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A. Endochondral ossification only

B. Membranous ossification only

C. Both of the above

D. None of the above

9924. Alveolar bone proper is also known as: or Which of the following is seen as lamina dura in an IOPA radiograph ?
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A. Lamina propria

B. Lamina dura

C. Lamina lucida

D. Lamina densa

9925. Basic metabolic unit of bone is_______________?
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A. Osteoclast

B. Osteocyte

C. Osteoblast

D. Osteon

9926. The type of bone present in the labial area of anterior teeth is_________________?
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A. Cancellous

B. Cortical

C. Exophytic

D. Osteophytic

9927. The content of saliva include all except____________?
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A. Amylase

B. Urea

C. Lipase

D. Lysoenzyme

9928. Which of the following is not true___________?
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A. Alveolar bone proper surrounds the root and gives attachment to fibres of periodontal ligament

B. The cortical plates are thinner in maxilla than in mandible

C. They are thickest in anterior portion of jaw

D. supporting alveolar bone surrounds the alveolar bone proper and supports the socket

9929. Which of the following is true?
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A. All of the above

B. CAMP or cyclic adenosine monophosphate levels are increased on pressure side of bone and this results in bone resorption

C. Cutting cone or resorption tunnel is the area of resorption seen in alveolar bone

D. Immature born / embryonic bone seen during fracture healing contains less calcified material and greater number of large osteocytes

9930. The process of recesses formation in maxillary sinus is most frequently seen with________________?
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A. Zygomatic process

B. Palatine process

C. Frontal process

D. Alveolar process

9931. In multirooted teeth, formation of multiple roots is due to presence of_____________?
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A. Epithelial diaphragm

B. Toot bud division or bell stage

C. None of the above

D. Cell rests of Malassez

9932. Root lengthening is contributed by____________?
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A. All of the above

B. Intermediate cementum

C. Acellular cementum

D. Cellular cementum

9933. The dental pulp is derived form____________?
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A. Stellate reticulum

B. Dental sac

C. Odontoblasts

D. Dental papilla

9934. Lip furrow band is______________?
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A. Basal lamina

B. Successional lamina

C. Dental lamina

D. Vestibular lamina

9935. True about direction of enamel rods______________?
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A. In cervical region of permanent teeth, they deviate in apical direction

B. All of the above

C. They are almost vertical near the incisal edge (or) cusp tip areas

D. In the cervical third of deciduous crowns they are almost horizontal in direction

E. They originate at right angle to dentin surface

9936. Periodontal fibres joining cemental surface of one tooth, to cemental surface of adjacent tooth are called____________?
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A. Gingivodental

B. Cemental fibres

C. Horizontal fibres

D. Transseptal fibres

9937. The formative cells of which of the following dental tissues disappear once tissue is formed___________?
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A. Dentin

B. Enamel

C. Cementum

D. Periodontal ligament

9938. Atypical or osteodentin is formed due to disturbance during____________?
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A. Apposition

B. Initiation

C. Morphodifferentiation

D. Histodifferentiation

9939. Sharpeys fibres are present in_______________?
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A. Periosteum

B. Bone

C. All of the above

D. Periodontal ligament

9940. The diameter of the rod is______________?
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A. 9 ? m

B. 4 ? m

C. 7 ? m

D. 2 ? m

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