Karnatak University 2009 B.D.S Dental Surgery , , – III : ORAL ANATOMY, HISTOLOGY AND PHYSIOLOGY - Question Paper

Second Year B.D.S. Degree Examination, May 2009

Paper – III : ORAL ANATOMY, HISTOLOGY AND PHYSIOLOGY

Time : three Hours Max. Marks : 100

PART – A

1. Enumerate the kinds of dentin. explain about different structures observed in a

ground part of dentin. 10
2. Discuss in detail with diagrams, the macroscopic and microscopic structure of
gingiva. 10
3. Write briefly on the subsequent : (3×5=15 Marks)
a) Stellate reticulum.
b) Occlusal aspect of mandibular 1st premolar.
c) Phases of deglutition
4. Multiple option ques. : (1×15=15 Marks)

1) The cells in oral epithelicum, those function as pressure sensitive cells a) Merkel cells

b) Basal cells

c) Langerhans' cells d) Spinous cells

2) kind of collagen that forms a chicken wire configuration in basement membrane a) kind VIII

b) kind VII c) kind IV d) kind I




P.T.O.


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3) The lines observed in bone, that is indicative of constant remodelling of bone

a) Resting lines

b) Reversal lines

c) Imbrication lines

d) Incremental lines

4) Basic structural and functional unit of bone is

a) Haversian canal

b) Volkmann's canal

c) Osteon

d) Lamellae

5) The functional integrity of periodontium is maintained through _____________

function of periodontal ligament.

a) Supportive function

b) Proprioceptive function

c) Nutritive function

d) Homeostatic function

6) Remnants of Hertwig's Epithelial Root sheaths are

a) Cell rests of Zukerkandl

b) Cell rests of Malassez

c) Cell rests of Serres'

d) Cell rests of Retzius

7) Hyaline layer of Hopewell Smith is obtained

a) Between dentin and cementum

b) Between dentin and enamel

c) Lining the periphery of cementum

d) Covering the newly erupted teeth


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8) Slow rate of cementum deposition leads to formation of

a) Acellular afibrillar cementum

b) Mixed stratified cementum

c) Acellular cementum

d) Afibrillar cementum

9) Perikimata is the

a) External manifestation of striae of Retzius

b) External manifestation of enamel lamellae

c) Organic covering on newly erupted teeth

d) Organic covering formed from saliva on enamel

10) The optical phenomenon of enamel that can be observed only in reflected light is

a) Gnarled enamel

b) Hunter Schreger bands

c) Striae of Retzius

d) None of the above

11) Non successor permanent teeth develop from

a) Successional lamina

b) Primary epithelial band

c) Accessional lamina

d) Vestibular lamina

Earning:   Approval pending.