Renal Questions from QUIZ 2

Question 1

Why dont plasma proteins pass into the capsular space under normal circumstances?
a) glomerular filtration rate is too low
b) plasma proteins do not enter the capillary
c) glomerular blood pressure is too low
d) glomerular capillary pores are too small

Answer 1

Why dont plasma proteins pass into the capsular space under normal circumstances?
d) glomerular capillary pores are too small

Question 2

All of the following are effects of angiotensin II EXCEPT:
a) elevation fo glomerular pressures and GFR
b) elevation of arterial pressure throughout the body
c) inhibition of antidiuretic hormone (ADH) release
d) stimulation of Na+ reabsorption in the distal convoluted tubule (DCT)

Answer 2

All of the following are effects of angiotensin II EXCEPT:
c) inhibition of antidiuretic hormone (ADH) release

Question 3

What is the major driving force behind filtrate production?
a) the osmotic pressure of the blood
b) hydrostatic pressure in the efferent arteriole
c) hydrostatic pressure in the afferent arteriole
d) capsular hydrostatic pressure

Answer 3

What is the major driving force behind filtrate production?
c) hydrostatic pressure in the afferent arteriole

Question 4

Why are glomerular pressures higher than the pressure in other (non renal) capillaries?
a) the efferent arteriole has a smaller diameter than the afferent arteriole, increasing resistance
b) adrenaline and noradrenaline cause increased glomerular pressure
c) the length of the afferent arteriole is longer than the efferent arteriole
d) sodium content of the filtrate increases pressure

Answer 4

Why are glomerular pressures higher than the pressure in other (non renal) capillaries?
a) the efferent arteriole has a smaller diameter than the afferent arteriole, increasing resistance

Question 5

What effect does renin have on the glomerular filtration rate (GFR) ?
a) it will increase the GFR and vasoconstrict the efferent arteriole
b) none of the answers are correct
c) it will decrease the GFR and vasoconstrict the efferent arteriole
d) it will increase the GFR and vasoconstrict the afferent arteriole

Answer 5

What effect does renin have on the glomerular filtration rate (GFR) ?

a) it will increase the GFR and vasoconstrict the efferent arteriole

Question 6

A decrease in Na+ in the blood leads to an increase in blood pressure because:
a) it increases aldosterone secretion
b) it increases renin production
c) it increases ADH secretion
d) all of the answers are correct

Answer 6

A decrease in Na+ in the blood leads to an increase in blood pressure because:

d) all of the answers are correct

Question 7

Damage to which part of the nephron interferes with hormonal control of blood pressure?
a) renal pelvis
b) juxtaglomerular apparatus
c) proximal convoluted tubule
d) nephron loop

Answer 7

Damage to which part of the nephron interferes with hormonal control of blood pressure?
b) juxtaglomerular apparatus