physiology MCQs – Page 22

Practise focused physiology questions with marked answers for exam preparation and subject revision.

physiology Mcqs
421. Blood cells arise in bone marrow and are subject to______________?
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A. Regular renewal

B. None of the above

C. Irregular renewal

D. Infrequent renewal

422. Which of the following causes lysis of clot______________?
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A. Fibrin

B. Coagulase

C. Plasmin

D. Hyaluronidase

423. Major portion of glomerular filtrate is absorbed in__________________?
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A. Distal convoluted tubule

B. Proximal segment

C. Collecting duct

D. Loop of Henle

425. Increased blood viscosity and slow circulation causes______________?
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A. RBC rouleax formation

B. None

C. Increased number of RBC in capillaries

D. Increased plasma skimming

426. Fluid content of the blood is______________?
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A. Serum

B. Water

C. Plasma

D. Tissue fluid

427. AB group has following agglutinins_______________?
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A. Anti A

B. Anti B

C. Neither anti A nor anti B

D. Anti A & Anti B

428. To measure renal plasma clearance compound should be_________________?
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A. Completely filtered by glomerulus

B. Bound to plasma protein

C. Secreted by the tubules

D. <70,000 Mol.wt

430. Small lymphocyte is _____________?
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A. Bigger than RBC

B. None of these

C. Same as the size of RBC

D. Smaller than RBC
431. The part of nephron least permeable to water is______________?
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A. Descending limb of loop of Henle

B. Ascending limb of loop of Henle

C. Collecting tubule

D. Proximal tubule

432. T- lymphocytes play a primary role in_________________?
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A. production of lymphokines and delayed hypersensitivity

B. Production of Antibodies

C. Immediate Hypersensitivity

D. Activation of complement system

433. Regulated bone growth through puberty occurs through__________________?
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A. Chondrophyseal plates

B. Epiphyseal plates

C. Ectophyeseal plates

D. Endophyseal plates

434. Megaloblasts are precursors of_____________?
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A. Megakaryocytes

B. Norm oblasts

C. Myelocytes

D. Macrocytes

435. True about nephron is_____________?
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A. The filtrate reaching distal convoluted tubule is hypertonic with respect to surroundings

B. Absorption of water occurs in ascending loop of Henle

C. Na is absorbed actively in descending loop of Henle

D. 60 to 70% of GFR is absorbed in proximal tubule
436. The anticoagulant of choice used in the blood bank is_______________?
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A. Calcium oxalate

B. Sodium fluoride

C. Acid citrate dextrose solution

D. Heparin solution

437. Pain producing substance is________________?
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A. Histamine

B. Serotonin

C. Acetyl choline

D. Substance P
438. Macula dense in kidney is located in relation to______________?
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A. Afferent arteriole

B. Efferent arteriole

C. PCT

D. DCT
439. Each kidney contains about ______ nephrons ?
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A. Two million

B. One million

C. Four million

D. million

440. Plasma colloid osmotic pressure is due to________________?
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A. Globulin

B. Albumin

C. Collagen

D. Fibrinogen