medical MCQs – Page 212

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 Review each marked answer and report any item that may be outdated or unclear.

4221. Rounded protuberances on the incisal edges of newly erupted permanent incisors are____________?
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A. Cingulum

B. Tubercles

C. Mamelons

D. Enamel pits

4222. Which of the following is innervated by the vagus nerve ?
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A. The psterior belly of digastric

B. The tensor veli palatine ( tensor palatini)

C. Mylohyoid

D. The levator velti palatine ( levator palatini)
4223. Palatogingival groove is found in______________?
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A. All of the above

B. Maxillary first premolar

C. Maxillary lateral incisor

D. Maxillary first molar

4224. Cranial accessory nerve supplies_____________?
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A. Trapezius

B. Sternomastoid

C. Splenius capitis

D. Soft palate
4225. Largest cusp in permanent mandibular first molar is__________________?
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A. Mesiobuccal

B. Distobuccal

C. Mesio lingual

D. Distal

4226. All the following hormones bind to cell surface receptors of the target tissues EXCEPT_____________?
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A. Estrogen

B. Epinephrine

C. Thyroid stimulating hormone

D. Glucagon

4227. The biting forces at molar region during mastication is_______________?
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A. 90 to 200 pounds

B. 30 to 75 pounds

C. 20 to 55 pounds

D. 50 to 75 pounds

4228. Crown formation of all permanent teeth except third molars is completed between_____________?
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A. Birth to 8 years

B. 6 years to 12 years

C. Birth to 6 years

D. Birth to 12 years

4229. The shape of the occlusal surface of the permanent maxillary first molar is___________?
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A. Rhomboidal

B. Oval

C. Trapezoidal

D. Triangular

4230. Tooth with most variable occlusal anatomy________________?
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A. Maxillary third molar

B. Maxillary second premolar

C. Mandibular second premolar

D. Mandibular third molar

4231. The root of maxillary lateral incisors if curved is usually in which direction ?
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A. Palatal

B. Distal

C. Mesial

D. Facial

4232. In primates; a tooth with single conical cusp and single root is seen in________________?
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A. Acrodont

B. Haplodont

C. Thecodont

D. Heterodont

4233. Fourth canal is present in_____________?
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A. Mesiobuccal roots of maxillary first molar

B. Distal root of mandibular first molar

C. Both of the above

D. None of the above

4234. In conns disease, there is an excess of______________?
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A. Noradrenaline

B. Adrenaline

C. Aldosterone

D. Cortisol

4235. Adrenaline used for controlling of bleeding during surgery may result in________________?
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A. Syncope

B. Cardiac arrhythmias

C. Drastic fall in blood pressure

D. Precipitation of allergic reaction

4236. Cusp of carbelli is present on ________ surface of the permanent maxillary molar ?
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A. Mesial surface

B. Buccal surface

C. Palatal surface

D. Mesial half of the palatal surface
4237. Pregarglionic parasympatnetic fibres to the Otic ganglion are carried in the______________?
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A. Auriculotemporal nerve

B. Chorda tympani

C. Greater petrosal nerve

D. Lesser petrosal nerve
4238. Which of the following is associated with a low concentration of ionized calcium in the serum ?
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A. Osteogenesis imperfecta

B. Hypothyroidism

C. Pagets disease of the bone

D. Tetany
4239. Hormones FSH & LH of anterior pituitary gland acts on___________________?
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A. Testis but not ovaries

B. Ovaries but not testis

C. Both Testis and ovaries

D. Adrenal cortex

4240. The premolar with the occlusal groove pattern that may simulate the letter Y is________________?
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A. Maxillary second

B. Maxillary first

C. Mandibular second

D. Mandibular first