Occulusion Most Important MCQs

1 - All are actions of CCK except_______________?






Increased gastric secretion

2 - All of the following muscles are elevators of the mandible except______________?






Digastric

3 - All the following causes the secretion of gastric juice during cephalic phase EXCEPT______________?






Food in the stomach

4 - Articular disc of TMJ is__________?






All of the above

5 - Articular disc of tmj receives insertion from which muscle______________?






Lateral pterygoid

6 - Basically TMJ is a_____________?






Diartmodal joint

7 - Best stimuli for secretion is______________?






Acid

8 - Bile acids are derived from_____________?






Cholesterol

9 - Bile color is due to_____________?






Bilirubin

10 - Bile salt repeats its cycle in____________?






8 times a day

11 - Bilirubin is conjugated with which of the following ?






Glucuronic acid

12 - Cephalic phase of gastric secretion can be demonstrated by the following experiment____________?






Pavlov's pouch

13 - Cephalic phase of gastric secretion is mediated by ______________?






Vagus

14 - Cholagogues are the substances, which cause______________?






Contraction of the gallbladder

15 - Curve passing through the buccal and lingual cusp tips of the mandibular buccal teeth is______________?






Wilson curve

16 - Depression of mandible is achieved by_______________?






All of the above

17 - Desmodont is another name for_____________?






periodontal ligament

18 - Distobuccal cusp of 27 falls into ______________?






Embrasure of 37 & 38

19 - Facial occlusal line in the maxillary arch is formed by_______________?






Non- supporting cusps

20 - Fats absorbed with the help of bile salts are_______________?






Higher fattery acids, diglycerides and monoglycereides

21 - Forward moment of mandible is done by_________?






Lateral pterygoid

22 - Gastric secretion is stimulated by all the following except_____________?






Secretin

23 - Gastrin is produced by _____________?






All

24 - Gastro – intestinal hormone in the following is_______________?






Cholecystokinin

25 - Group function occlusion is common in_____________?






Above 30 years

26 - Histamine stimulate the secretion of_______________?






HCL by stomach

27 - If a permanent first molar is lost, the permanent second molar drifts to the______________?






Mesial side

28 - In an ideal occlustion buccal cusps of maxillary teeth, occlude with______________?






Grooves and embrasures

29 - In centric occlusion, the cusp tip of the maxillary canine is in alignment with which mandibular tooth_____________?






Facial embrasure of canine and premolar

30 - In jaundice, there is an unconjugated hyperbilirubinemia which is most likely due to __________?






Increased break down of red cells

31 - In normal occlusion , with which grooves / surface of the permanent mandibular first molar does the mesiobuccal cusp of the permanent maxillary first molar occlude______________?






Mesiobuccal surface

32 - In occlusion the teeth have_______________?






Surface to surface contact

33 - IN occlusion, the teeth have______________?






Surface – to- surface contact

34 - In the intercuspal position, the lingual cusp of maxillary 2nd premolar contacts the______________?






Distal fossa of mandibular 2ndpremolar

35 - In which of the following areas is the alveolar process the thinnest_____________?






Buccal to the mandibular central incisors

36 - Lateral movement of condyle is caused by_____________?






Both lateral and medial pterygoid muscle

37 - Maxillary facial and mandibular lingual cusps require sufficient occclusal length and horizontal overlap for_____________?






Soft tissue protection

38 - Maximum absorption of bile occurs at_____________?






Ileum

39 - Maximum contact between occlusal surfaces, of maxillary and mandibular teeth occur during________________?






Centric occlusion

40 - Maximum secretory glands in stomach are________________?






Fundic glands

41 - Most potent stimulus for secretin is______________?






Acid chyme

42 - Normal dentition in centric occlusion, opposing contact may be expected at_____________?






Buccal slopes of lingual cusps of maxillary posterior teeth

43 - Nutrients are mainly absorbed in______________?






Small intestine

44 - Of the following is a reflex mediated by vagus ?






Cephalic phase of gastric secretion

45 - On opening the mouth , if the jaw deviates to the right side, it indicates the paralysis of__________?






Right lateral pterygoid

46 - Over jet is defined as______________?






Horizontal overlap

47 - Pancreas produce_____________?






Chymotrypsinogen

48 - Pancreatic juice rich in water and electrolytes but poor in enzymes is secreted in response to ______________?






Cholecystokinin

49 - Parietal cells of gastric mucosa secrete ______________ ?






Hcl

50 - Pepsinogen is activated by ___________________ ?






Low pH

51 - Peristalsis in the gut is due to ______________?






Mecharical distension

52 - Peristalsis involves coordinated contraction and relaxation______________?






Above and below the food bolus

53 - Pharyngeal phase of deglutition_____________?






A and B

54 - Position and movement of articular disc of TMJ is controlled by fibers of_____________?






Upper head of lateral pterygoid muscle

55 - Production of bile takes place in____________________?






Hepatocytes

56 - Retrusion of mandible is achieved by _______________?






Temporalis

57 - Secretin does not cause _______________?






Gastric secretion increase

58 - Secretin is secreted by_____________?






Duodenum

59 - Small intestinal peristalsis is controlled by _______________?






Myentric plexus

60 - Stomach accommodates the meal by______________?






Receptive relaxation

61 - Temporo – mandibular ligament is attached to _____________?






Lateral aspect of TMJ

62 - The duodenum secretes a hormone which has following effects except_______________?






Increases gastric motility

63 - The final sugars in intestinal chyme are____________?






Glucose & fructose

64 - The incisal edges and the incisal thirds of facial surfaces of mandibular incisors and canines generally oppose lingual surfaces of maxillary incisor and canines _____________?






Within the incisor thirds

65 - The intrinsic factor for vitamins B12 absorption is produced in the______________?






Stomach

66 - The key to occlusion is_______________?






Maxillary permanent first molar

67 - The maxillary teeth which have single antagonist are__________?






Third molars

68 - The most important action of Secretin is to_____________?






Cause contraction of pyloric sphincter

69 - The most important function of hydrochloric acid in the stomach is_______________?






Activation of pepsinogen

70 - The only sugar normally absorbed in the intestine against a concentration gradient is_____________?






Glucose

71 - The premolar alveoli are what shape in cross section_____________?






Kidney shaped

72 - The side towards which mandible moves is called the_____________?






Working side

73 - The zygomatic bone does not articulate with________________?






Nasal bone

74 - Thinnest labial plate is found in the region of____________?






Lower central incisors

75 - Trypsin is an activator of all of the following enzymes EXCEPT_______________?






Pepsinogen

76 - Urine urobilinogen is absent in_______________?






Obstructive jaundice

77 - Vagal stimulation following intake of food does not affect secretion of_______________?






Parotid

78 - When a molar has no opposing tooth, it can become_______________?






Extruded

79 - Which is not produced enteroendocrinally_____________?






Intrinsic factor

80 - Which is the predominant factor in the formation of the alveolar process_____________?






Eruption of teeth

81 - Which muscle is responsible for translation of condyle ?






Lateral pterygoid

82 - Which of the following body secretions is maximum______________?






Gastric

83 - Which of the following is not a structural element of the temporomandibular joint ?






Sigmoid notch

84 - Which of the following moment are performed by a non- working condyle ?






Down wards forwards and lateral

85 - Which of the following movement (s) is / are involved in the opening of the mouth?






Hinge followed by translation

86 - Which of the following muscle helps in depressing the mandible ___________?






Lateral pterygoid

87 - Which of the following muscles moves the condyle and articular disc anterior and downwards on glenoid fossa______________?






Lateral pterygoid

88 - which of the following secretions has a very high pH________________?






Pancreatic juice

89 - Which of the portions of the intra articular disc is the thinnest ?






Intermediate

90 - Within which parts of a gastric gland are chief cells located_____________?






Fundus

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