MCQOPTIONS
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MCQOPTIONS
This section includes 370 Mcqs, each offering curated multiple-choice questions to sharpen your Medical Subjects knowledge and support exam preparation. Choose a topic below to get started.
| 151. |
Second arch derivatives are all except_________________? |
| A. | Stapes |
| B. | Malleus and incus |
| C. | Styloid process |
| D. | Superior part of hyoid bone |
| Answer» C. Styloid process | |
| 152. |
Sclerotic dentin has following features_____________? |
| A. | Caries susceptible |
| B. | Insensitive |
| C. | Hypersensitive |
| D. | Resistant to caries |
| Answer» E. | |
| 153. |
Saliva is secreted by____________? |
| A. | Major salivary glands |
| B. | Minor salivary glands |
| C. | Major & minor salivary glands |
| D. | Parotid gland |
| Answer» D. Parotid gland | |
| 154. |
S shape of dentinal tubules is due to______________? |
| A. | Incremental deposition |
| B. | Peritubular dentin |
| C. | Crowding of odontoblasts |
| D. | Due to excess amount of organic component |
| Answer» D. Due to excess amount of organic component | |
| 155. |
Root lengthening is contributed by____________? |
| A. | Cellular cementum |
| B. | Acellular cementum |
| C. | Intermediate cementum |
| D. | All of the above |
| Answer» B. Acellular cementum | |
| 156. |
Role of meckel’s cartilage in development of mandible__________________? |
| A. | It has a major role |
| B. | It has a minor role |
| C. | It does not have any role |
| D. | None of the above |
| Answer» D. None of the above | |
| 157. |
Reversal lines which may be seen on the cribriform plate (alveolar bone proper) of the alveolar process indicate the cessation of____________? |
| A. | Osteoblastic activity |
| B. | Osteoclastic activity |
| C. | Myeloid activity |
| D. | Healing activity |
| Answer» C. Myeloid activity | |
| 158. |
Resorption of dental tissue is caused by_____________? |
| A. | Osteoclasts |
| B. | Osteoblasts |
| C. | Odontoclasts |
| D. | Odontoblasts |
| Answer» D. Odontoblasts | |
| 159. |
Remnants of the Hertwig’s root sheath are found in____________? |
| A. | Gingiva |
| B. | Alveolar bone |
| C. | Periodontal ligament |
| D. | Cementum |
| Answer» D. Cementum | |
| 160. |
Regressive changes in pulp include____________? |
| A. | Increased fibrotic component |
| B. | Decreased cellular component |
| C. | Calcification in blood vessels near apical foramen |
| D. | All of the above |
| Answer» E. | |
| 161. |
Regarding teeth which statement is wrong ? |
| A. | Enamel is harder than dentine |
| B. | Enamel has no cells |
| C. | Ameloblast secrete enamel and dentine |
| D. | Odontoblast produce dentin |
| Answer» D. Odontoblast produce dentin | |
| 162. |
Reestablishing the former outline of the root surface is_____________? |
| A. | Anatomic repair |
| B. | Functional repair |
| C. | Physiological repair |
| D. | Hyperplasia |
| Answer» B. Functional repair | |
| 163. |
Ratio of diameter of enamel rods in the DEJ to the enamel surface is______________? |
| A. | 1:4 |
| B. | 1:1 |
| C. | 1:2 |
| D. | 2:1 |
| Answer» C. 1:2 | |
| 164. |
Pure mucous glands are_____________? |
| A. | Labial and buccal glands |
| B. | Glosso palatine & palatine glands |
| C. | Vonebners glands |
| D. | Lingual glands |
| Answer» C. Vonebners glands | |
| 165. |
Pulp tissue contains all except____________? |
| A. | Fibroblasts |
| B. | Capillary |
| C. | Osteoblasts |
| D. | Ameloblasts |
| Answer» E. | |
| 166. |
Pulp responds to all stimuli by pain because it has only_______________? |
| A. | Free nerve endings |
| B. | Krause end bulbs |
| C. | Pacinian corpuscle |
| D. | Ruffini corpuscle |
| Answer» B. Krause end bulbs | |
| 167. |
Protein secreted by odontoblast_____________? |
| A. | Chitin |
| B. | Keratin |
| C. | Collagen |
| D. | Elastin |
| Answer» D. Elastin | |
| 168. |
Protein making up the bulk of keratohyaline granules in stratum granulosum of keratinized epithelium is______________? |
| A. | Involucrin |
| B. | Vinculin |
| C. | Filaggrin |
| D. | Nectin |
| Answer» D. Nectin | |
| 169. |
Propriceptors are seen in all except______________? |
| A. | Skeletal muscle |
| B. | TMJ |
| C. | Pulp |
| D. | None of the above |
| Answer» D. None of the above | |
| 170. |
Principal fibres of periodontal ligament are attached to_____________? |
| A. | Alveolar bone proper |
| B. | Bundle bone |
| C. | Lamellar bone |
| D. | Cortical bone |
| Answer» C. Lamellar bone | |
| 171. |
Physically and chemically, the dentin is closely related to______________? |
| A. | Bone |
| B. | Acellular cementum |
| C. | Enamel |
| D. | None of the above |
| Answer» B. Acellular cementum | |
| 172. |
Periodontal ligament is made up of____________? |
| A. | Type I collagen |
| B. | Type I and Type III collagen |
| C. | Type I and Type II collagen |
| D. | Type I and Type IV collagen |
| Answer» C. Type I and Type II collagen | |
| 173. |
Periodontal fibres joining cemental surface of one tooth, to cemental surface of adjacent tooth are called____________? |
| A. | Gingivodental |
| B. | Cemental fibres |
| C. | Horizontal fibres |
| D. | Transseptal fibres |
| Answer» E. | |
| 174. |
Periodontal ligament has predominantly_________? |
| A. | Type II collagen fibres |
| B. | Oxytalan fibres |
| C. | Elastic fibres |
| D. | Type I collagen fibres |
| Answer» E. | |
| 175. |
perikymata are the external surface manifestations of_____________? |
| A. | Enamel rods |
| B. | Incremental lines of retzius |
| C. | Nasmyth’s membrane |
| D. | Pellicle |
| Answer» C. Nasmyth’s membrane | |
| 176. |
Pericytes are found___________? |
| A. | In thymus |
| B. | Around capillaries of pulp |
| C. | In gallbladder |
| D. | Along with heparin on surface of mast cells |
| Answer» C. In gallbladder | |
| 177. |
Partially keratinized papilla is_______________? |
| A. | Fungiform |
| B. | Filiform |
| C. | Circumvallate |
| D. | Foliate |
| Answer» C. Circumvallate | |
| 178. |
Pain originate in the pulp due to_________? |
| A. | free nerve ending in cell rich zone |
| B. | free nerve ending at sub odontoblastic layer |
| C. | Krause bulb at the center of the pulp |
| D. | Meisseners corpuscles at cell rich zone |
| Answer» C. Krause bulb at the center of the pulp | |
| 179. |
Outer and inner enamel epithelium first seen in____________? |
| A. | Bud stage |
| B. | Advanced bell stage |
| C. | Cap stage |
| D. | Bell stage |
| Answer» D. Bell stage | |
| 180. |
Osteoblasts appear basic gram staining due to______________? |
| A. | Increased ribonucleic acid |
| B. | Acidic ground substance |
| C. | Increased mitochondria |
| D. | Presence of basic ground substance |
| Answer» B. Acidic ground substance | |
| 181. |
Organic portion can be separated from the mineral by_____________? |
| A. | Incineration/organic chelation |
| B. | Decalcification |
| C. | Devitrification |
| D. | Combustion |
| Answer» B. Decalcification | |
| 182. |
Organ of chievity is seen near the______________? |
| A. | Medial surface of the mandible |
| B. | Naso palatine foramen |
| C. | Mental foramen |
| D. | Foramen caecum |
| Answer» B. Naso palatine foramen | |
| 183. |
Order of development of tooth germ is____________? |
| A. | Bell-bud-cap |
| B. | Cap-bell-bud |
| C. | Bud-cap-bell |
| D. | Bell-cap-bud |
| Answer» D. Bell-cap-bud | |
| 184. |
Oral tissue for microscopic examination is prepared by_______________? |
| A. | Embedded in paraffin and sectioned |
| B. | Embedded in paradion and sectioned |
| C. | Frozen and sectioned |
| D. | Specimens ground into thin sections |
| E. | All of the above |
| Answer» F. | |
| 185. |
One of the following statement is unique about circumpulpal dentine______________? |
| A. | Collagen fibers are oriented perpendicular to DEJ |
| B. | Vonkorff fibers are present |
| C. | Contain phosphophoryn |
| D. | Requires matrix vesicle for mineralization |
| Answer» D. Requires matrix vesicle for mineralization | |
| 186. |
On microscopic examination enamel rods have___________? |
| A. | Key hole appearance in cross section |
| B. | Paddle appearance in cross section |
| C. | Lanullate appearance in cross-section |
| D. | None of the above |
| Answer» B. Paddle appearance in cross section | |
| 187. |
Of the total amount of saliva secreted by all the salivary glands, about 60% is secreted by the_____________? |
| A. | Parotid glands |
| B. | Sublingual glands |
| C. | Submandibular glands |
| D. | None of the above |
| Answer» D. None of the above | |
| 188. |
Odontoblasts are derived from______________? |
| A. | Undifferentiated mesenchymal |
| B. | Histocytes |
| C. | Macrophages |
| D. | Lymphocytes |
| Answer» B. Histocytes | |
| 189. |
Nutritional supply of the ameloblasts during most of their life cycle is from the_____________? |
| A. | Dental pulp |
| B. | Odontoblastic processes |
| C. | Dental sac |
| D. | Reduced dental organ |
| Answer» D. Reduced dental organ | |
| 190. |
Nutrition for ameloblasts after 1st layer of enamel is laid is______________? |
| A. | Dental sac |
| B. | Odontoblastic process |
| C. | Ree |
| D. | Dental Papilla |
| Answer» B. Odontoblastic process | |
| 191. |
Normal interincisal distance is____________________? |
| A. | 48 mm |
| B. | 38 mm |
| C. | 58 mm |
| D. | 28 mm |
| Answer» B. 38 mm | |
| 192. |
Non keratinized epithelium is found over___________? |
| A. | Attached gingiva |
| B. | Free gingiva |
| C. | Interdental papilla |
| D. | Gingival sulcus |
| Answer» E. | |
| 193. |
Non acidic, nonionic protein which helps in enamel mineralization _______________? |
| A. | Tuftelin |
| B. | Sheathlin |
| C. | Enamelin |
| D. | Amelogenin |
| Answer» E. | |
| 194. |
Neonatal lines are seen in_______________? |
| A. | Enamel of deciduous incisiors |
| B. | Enamel of permanent incisors |
| C. | Enamel of premolars |
| D. | Dentin of all teeth, as if is formed first |
| Answer» B. Enamel of permanent incisors | |
| 195. |
Neonatal lines are found in all of the following except____________? |
| A. | Enamel of primary incisors |
| B. | Enamel of permanent canines |
| C. | Enamel and dentin of permanent first molars |
| D. | Dentin of permanent mandibular incisors |
| Answer» C. Enamel and dentin of permanent first molars | |
| 196. |
Neonatal line is also referred to as______________? |
| A. | Retzius line |
| B. | Line of cross striations |
| C. | Incremental lines |
| D. | Line of enamel tufts |
| Answer» D. Line of enamel tufts | |
| 197. |
Narrowing of periodontal ligament in labially placed mandibular canine with age is due to_____________? |
| A. | Due to deposition of cementum and bone |
| B. | Down growths of gingival epithelium |
| C. | Gingival cysts formed from cell rests |
| D. | Reversal of function of horizontal and oblique fibres |
| Answer» B. Down growths of gingival epithelium | |
| 198. |
narled enamel is seen in_____________? |
| A. | Proximal surface of tooth |
| B. | Cervical region of tooth |
| C. | Cusp tips of tooth |
| D. | All of the above |
| Answer» D. All of the above | |
| 199. |
Myoepithelial cells are present in________________? |
| A. | Striated duct |
| B. | Intercalated & terminal duct |
| C. | Serous cells |
| D. | Mucous cells |
| Answer» C. Serous cells | |
| 200. |
Mucin in mucous cells usually demonstrated by______________? |
| A. | PAP stain |
| B. | H & E stain |
| C. | Mucicarmine stain |
| D. | Mallory stain |
| Answer» D. Mallory stain | |