Medical Quiz

Regulation of Urine Formation Quiz


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Countercurrent mechanism to maintain the concentration gradient in the medullary interstitium. This special arrangement occurs in:-

A. PCT and capillary net

B. DCT and PCT

C. Henle’s loop and vasa recta

D. PCT and collecting duct


A. Renal calculi

B. Glomerulonephritis

C. Diabetes mellitus

D. Diabetes incipidus


The presence of what condition would indicate the urgent need for a kidney transplant?

A. Kidney stones

B. Kidney failure

C. Uremia

D. Glycosauria


Reabsorption of Na+ is controlled by –

A. Vasopressin or ADH

B. Aldosterone

C. Renin

D. Rennin


Kidney stone is caused by

A. Drinking less water

B. Eating dry fruits

C. Eating more seafood

D. Drinking more water


Which of the following is not part of the renin-angiotensin mechanism?

A. Angiotensinogen

B. Angiotensin

C. Aldosterone

D. Rennin


GFR in a healthy individual is approximately is

A. 180 lit/min

B. 200 lit/min

C. 125 lit/min

D. 125 ml/min


The average amount of urea excreted out by person per day is

A. 25-30gm

B. 10-20gm

C. 30-40 gm

D. 40-50 gm


Osmoregulation is the homeostatic mechanism of controlling…

A. Blood glucose levels

B. Temperature

C. Oxygen levels

D. Water and mineral ion levels


If you are over-hydrated (high water potential in the blood), the body must excrete excess water. To do so, the brain triggers the pituitary gland to …

A. release MORE ADH, making the collecting duct MORE permeable

B. release LESS ADH, making the collecting duct LESS permeable

C. release MORE ADH, making the collecting duct LESS permeable

D. release LESS ADH, making the collecting duct MORE permeable


Match the items of Column-I with those of Column-II. Column-I Column-II

(a) Ammonotelism (i) Birds
(b) Micturition (ii) Water Reabsorption
(c) Uricotelism (iii) Bony fish
(d) ADH (iv) Urinary Bladder

A. (a)-(iii), (b)-(iv), (c)-(i), (d)-(ii)

B. (a)-(ii), (b)-(iii), (c)-(iv), (d)-(i)

C. (a)-(ii), (b)-(iv), (c)-(i), (d)-(iii)

D. (a)-(iv), (b)-(iii), (c)-(ii), (d)-(i)


An increase in blood flow in the atria of the heart can cause the release of?

A. Angiotensin – II

B. Renin

C. Atrial Natriuretic factor

D. Angiotensin – I


Sebaceous glands Eliminate

A. Sterols

B. Hydrocarbons

C. Waxes

D. All


Human urine consists of

A. water, urea, uric acid

B. excess water, urea, uric acid and excess mineral salts.

C. uric acid and mineral salts

D. water, urea, ammonia and sugar


Renal failure

A. When the bladder cannot empty

B. when the kidneys stop filtering waste properly

C. When we urinate to much

D. When a kidney stone forms


When ADH is secreted, urine will:

A. Be more dilute

B. Be more concentrated

C. Have a larger volume

D. All of the above


How can urine be used to diagnose diabetes?

A. There would be blood in the urine

B. There would be glucose in the urine

C. There would be proteins in the urine

D. There would be salt in the urine


Which of the following is correct about juxta medullary nephrons?

A. Vasa recta is prominent

B. Vasa recta is prominent

C. NaCl is returned to the interstitium by ascending limb of vasa recta

D. All


A fall in GFR can activate the JG-Cells to release

A. Renin

B. Rennin

C. Na+

D. H2O


Juxta medullary Nephrons are Characterised by

A. Smaller afferent arteriole

B. Bowmen’s capsule with cuboidal epithelium

C. The loop of Henle is very long and extend into the medulla

D. Loop of Henle is short




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