medical MCQs – Page 205

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 Review each marked answer and report any item that may be outdated or unclear.

4081. Acromegaly is a disorder of____________?
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A. Excess thyroxine secretion

B. Excess growth hormone secreting

C. Excess ACTH secretion

D. Excess FSH secretion

4082. Adrenal gland has two parts; cortex and medulla. Which of the following is correct______________?
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A. Cortex is under the control of ACTH

B. Both cortex and medulla are under the control of autonomic nervous system

C. Cortex is exocrine and medulla is endocrine

D. All of the above

4083. Blood coagulation is impaired in___________?
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A. Tetany

B. Hyperparathyrodism

C. Rickets

D. None

4084. The most significant immediate result of lowered serum calcium is_______________?
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A. Weakened heart action

B. Decalcification of teeth

C. Decalcification of bones

D. Hyperirritability of nerves and muscles

4085. The permanent anterior tooth, which is most 20. Commonly atypical , is_____________?
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A. Maxillary lateral incisor

B. Mandibular 1st premolar

C. Maxillary central incisor

D. Mandibular central incisor

4086. In the mandibular arch, in which tooth maximum lingual inclination is present_______________?
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A. 3rd molar

B. 1st premolar

C. Lateral incisors

D. Canine

4087. Pharyngotympanic tube is supplied by all except_____________?
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A. Artery of pterygoid canal

B. Middle meningeal artery

C. Ascending palatine

D. Ascending pharyngeal

4088. Generally , contact areas between posterior teeth are located in which directions from the centr of the proximal surface ____________?
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A. Facially and gingivally

B. Facially and occlusally

C. Lingually and gingivally

D. Lingually and occlusally

4089. Buccal surface of posterior teeth are wider than lingual surface mesiodistally except in______________?
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A. Mandibular second premolar

B. Mandibular first molar

C. Maxillary second premolar

D. Maxillary first molar
4090. A phaeochromocytoma is a tumour of the____________?
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A. Pituitary

B. None of the above

C. Parathyroids

D. Adrenal cortex

4091. Hormone released during increased stress is_____________?
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A. Thyroxine

B. Growth hormone

C. Somatostatin

D. Cortisol
4092. All of the following are features of an injury to the cerival sympathetic trunk EXCEPT_____________?
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A. Enophthalmos

B. Anhydrosis

C. Mydriasis

D. Ptosis

4093. The number of point angles in a permanent mandibular first molar is_____________?
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A. 8

B. 6

C. 10

D. 4
4094. The supraoptic nucleus of the hypothalamus is believed to control secretion of which of the following hormones ?
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A. Oxytocin

B. Growth hormone

C. Adreno corticotrophic hormone

D. Antidiuretic hormone
4095. Difference between mandibular and maxillary premolars is that in the mandibular premolars ?
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A. The buccal surface is rounded and less developed

B. The lingual cusp is sharper and longer

C. The lingual surface rounded and less developed

D. The buccal and lingual cusps are more prominent

4096. An imaginary occlusal curve that contacts the buccal and lingual cusp tips of mandibular buccal teeth is called the _____________?
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A. Catenary curve

B. Wilson curve

C. Curve of spee

D. Monson curve

4097. Deficiency of cortisol causes_______________?
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A. Cushing syndrome

B. Graves disease

C. Acromegaly

D. Addison disease
4098. Which of the following has a nonfunctional cusp ?
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A. Mandibular canine

B. None of the above

C. Mandibular first premolar

D. Maxillary second premolar

4099. Which one of the following is a precursor of both gonadal and adrenocortical hormones_____________?
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A. Cortisol

B. Testosterone

C. Corticosterone

D. Progesterone
4100. Which teeth the proximal aspect shows rhomboidal appearance________________?
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A. Maxillary anteriors

B. Maxillary posteriors

C. Mandibular posteriors

D. Mandibular anteriors