medical MCQs – Page 239

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 Review each marked answer and report any item that may be outdated or unclear.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

4761. The secretomotor supply of the parotid gland is through_________________?
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A. Submandibular ganglion

B. Geniculate ganglion

C. Gasserian ganglion

D. Otic ganglion

4762. Rigor mortis results after death is due to________________?
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A. Failure of break down of calcium bridges

B. Failure of ATP supply

C. Failure of acetylcholine to diffuse

D. None of the above

4763. The tissue macrophages are derived from the________________?
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A. Monocyte

B. Neutrophil

C. All of the above

D. Eosinophil

4764. Delay in blood coagulation results from________________?
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A. Vit- K

B. Heparin

C. Ferric chloride

D. Human thrombin

4765. Tubuloglomerular feedback occurs in______________?
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A. ADH secretion in collecting duct

B. Balance between ascending and descending loop of henle

C. Macula densa

D. Constant solute load on distal tubule

4766. Carbonic anhydrase in the kidney tubular cells is known to be associated with_____________?
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A. Carbohydrate

B. Urea

C. Chloride

D. Bicarbonate ion

4767. Immune complexes are removed from blood by _____________?
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A. B cell

B. Plasma cell

C. Kupffer cell

D. Basophil

4768. Decreased basal metabolic rate is seen in_______________?
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A. Hyperthyroidism

B. Feeding

C. Obesity

D. Exercise

4769. In myasthenia gravis_______________?
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A. there is lack of acetyl choline

B. Muscles are rigid and tough

C. There is isometric contraction

D. Lack of acetyl choline receptors

4770. Smoking causes_____________?
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A. All of the above

B. Mucous secretion

C. Ciliary motility

D. Cellular hyperplasia

4771. Formation of a small volume of concentrated urine in dehydration is associated with____________?
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A. More concentration in loop of Henle

B. More reabsorption of DCT and collecting ducts

C. All of these

D. More reabsorption in the PCT

4772. Which of the following agents in not likely to be found in plasma ?
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A. Thrombin

B. Fibrinogen

C. Calcium ion

D. Prothrombin

4773. The anticoagulant of choice used in the blood bank is_______________?
0

A. Sodium fluoride

B. Heparin solution

C. Calcium oxalate

D. Acid citrate dextrose solution

4774. Universal blood donor ill be a blood group of_______________?
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A. AB positive

B. AB negative

C. Negative

D. Positive

4775. Kussmamuls respiration occurs in response to_______________?
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A. Decrease in pH of blood

B. Increase in pH of blood

C. Carbon monoxide poisoning

D. Obstructive pulmonary disease

4776. The normal A/G ratio in blood is______________?
0

A. 1:01

B. 5:01

C. 1:02

D. 2:1

4777. Life cycle of RBC is_______________?
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A. One month

B. 120 days

C. 90 days

D. 12 days

4778. The main types of muscle cells are______________?
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A. Smooth and skeletal

B. Skeletal and cardiac

C. Smooth and cardiac

D. All of the above

4779. The reabsorption of sodium chloride is increased in proximal convoluted tubules by hormones secreted from______________?
0

A. Adrenal cortex

B. Anterior pituitary

C. Adrenal medulla

D. Posterior pituitary

4780. Which of the following clotting factor is involved only in extrinsic pathway ?
0

A. IX

B. X

C. II

D. VII

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