medical MCQs – Page 351

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 Review each marked answer and report any item that may be outdated or unclear.

medical Mcqs

1. oral anatomy 2. microbiology 3. oral pathology and medicine 4. physiology 5. biochemistry 6. general anatomy 7. dental materials 8. pharmacology 9. pathology 10. oral histology

7001. Aldosterone production is controlled by _____________?
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A. Hypothalamus

B. Posterior pituitary gland

C. Adrenal gland

D. Anterior pituitary gland

7002. All the following hormones bind to cell surface receptors of the target tissues EXCEPT_____________?
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A. Epinephrine

B. Thyroid stimulating hormone

C. Glucagon

D. Estrogen

7003. Enzymes, which play an important role in calcification are______________?
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A. Alkaline phosphatase and catalase

B. Enolase and Calcitonin

C. Alkaline phosphatase and pyrophophatase

D. Pyrophosphatase and carbonic anhydrase

7004. Which of the following body secretions is maximum______________?
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A. Gastric

B. Salivary

C. Lacrimal

D. Sweat

7005. Arterial O2 content is reduced in one of following ______________?
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A. Anemic hypoxia

B. Hypoxic or arterial hypoxia

C. Stagnant hypoxia

D. Histotoxic hypoxia

7006. Peristalsis in the gut is due to ______________?
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A. Simultaneous action of circular and longitudinal muscles

B. Mecharical distension

C. Extrinsic nervous influence

D. Preperistalitic intestinal secretion

7007. Not true about T3 and T4 is______________?
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A. T3 more potent than T4

B. Absorption of T4 is more than T3

C. T4 binds to prealbumin

D. Concentration of T4 is more than T3

7008. Urine urobilinogen is absent in_______________?
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A. All of the above

B. Viral hepatitis

C. Hemolytic jaundice

D. Obstructive jaundice

7009. Deficiency of cortisol causes_______________?
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A. Graves disease

B. Addison disease

C. Acromegaly

D. Cushing syndrome

7010. Which hormone , together with the catecholamines enhances the tone of vascular smooth muscle and assists in elevating blood pressure ?
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A. Parathyroid hormone

B. Cortisol

C. Glucagon

D. Thyroxine

7011. What is true about pneumothorax ?
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A. The concentration of surfactant is reduced in alveoli

B. Increased lung compliance

C. Total chest wall diameter is increased

D. Interpleural pressure becomes more negative

7012. Negative BMR is observed with______________?
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A. Pituitary disturbance

B. Thyroid disturbance

C. Parathyroid

D. All of the above

7013. Pancreatic juice rich in water and electrolytes but poor in enzymes is secreted in response to ______________?
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A. Secretin

B. Pancreatozymine

C. Cholecystokinin

D. Proteins

7014. Stomach accommodates the meal by______________?
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A. Deceptive relaxation

B. Receptive relaxation

C. Reactive relaxation

D. None of the above

7015. Parietal cells of gastric mucosa secrete ______________ ?
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A. Hcl

B. All of the above

C. Gastrin

D. Mucin

7016. Which of the following hormones increase the sensitivity of heart to epinephrine________________?
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A. Thyroid

B. Parathyroid

C. Glucagon

D. Insulin

7017. Which of the following statements about the action of the somatomedin is true ?
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A. They inhibit protein synthesis

B. They antagonize the effect of insulin

C. They mediated the local effects of Somatostatin

D. They promote growth of bone and cartilage

7018. Iodine is primarily important in the biochemical synthesis of______________?
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A. Thyroxine

B. ACTH

C. Calcitonin

D. Adrenaline

7019. Removal of parathyroid gland produces the following changes EXCEPT_________________?
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A. Decrease in plasma phosphate level

B. Decline plasma calcium level

C. hypo calcemic tetany

D. Neuromuscular hyperexcitability

7020. Bilirubin is conjugated with which of the following ?
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A. Glutamine

B. Glycine

C. Glucuronic acid

D. Acetyl CoA

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