Our collection of physiology MCQs is meticulously designed to reinforce the conceptual understanding of various topics in biology. Covering a broad spectrum, our Human Physiology MCQs with answers delve into multiple concepts, including human digestion, the nervous system, human reproduction, body fluids and circulation, breathing and gas exchange, the renal system, respiratory system, GIT and liver, endocrinology, locomotion and movement in human sense organs, reflex actions, spinal nerves, physiology of urine formation, insulin physiology, and more. These carefully selected topics are sourced from reputable and authoritative physiology reference books. Our physiology MCQs with answers serve as invaluable resources for individuals preparing for interviews, entrance exams, competitive assessments, and certifications, catering to experienced professionals, newcomers, and students alike. Additionally, explore our MCQs on Pharmacology for further study.
41. Diuresis is caused by______________?
A. Mannitol
B. Glycerol
C. Urea
D. All of the above
42. Macula dense in kidney is located in relation to______________?
A. PCT
B. DCT
C. Afferent arteriole
D. Efferent arteriole
43. Which of the following is important in renal excretion of hydrogen ion ?
A. Combining H+ with Cl- to form Hcl
B. Combining H+ and HCO3- via enzyme carbonic anhydrase
C. Trapping H+ by acetate
D. Trapping H+ by NH3+
44. The renal clearance of _______________?
A. Creatinine indicates glomerular filtration rate
B. Inulin is lower than that of urea
C. Chloride increases after in injection of aldosterone
D. PAH continues to rise as the plasma concentration of PAH increases
45. True about nephron is_____________?
A. Na is absorbed actively in descending loop of Henle
B. 60 to 70% of GFR is absorbed in proximal tubule
C. Absorption of water occurs in ascending loop of Henle
D. The filtrate reaching distal convoluted tubule is hypertonic with respect to surroundings
46. The hyperosmolarity of the renal medulla is due to increased content of_____________?
A. K+
B. Na+
C. Glucose
D. NH4+
47. Renin secretion is stimulated by all except_____________?
A. Cardiac failure
B. Low Na+ in proximal tubule
C. Sympathetic stimulation
D. High Na+ in proximal tubule
48. What is the glomerular filtration rate ?
A. 100 ml/min
B. 125 ml/min
C. 150 ml/min
D. 175 ml/min
49. To measure renal plasma clearance compound should be_________________?
A. <70,000 Mol.wt
B. Bound to plasma protein
C. Secreted by the tubules
D. Completely filtered by glomerulus
50. The renal threshold for glucose is_______________?
A. 180 mg / dl
B. 100 mg/dl
C. 120 mg/dl
D. 80 mg/dl