Hormones And Nephron

Question 1

Angiotensin II

Answer 1

Increases renin, increases NaCl and H2O reabsorption

Affect proximal tubule, thick ascending limb, and distal tubule/collecting duct

Question 2

Aldosterone

Answer 2

Increases angiotensin II and K+ in plasma
Affects think ascending limb, DT, and CD
Will increase NaCl and H2O reabsorption
Decreases K+ reabsorption

Question 3

ANP, BNP, urodilatin

Answer 3

Increases ECFV (extra cellular fluid volume)
Affects CD
Decreases H2O and NaCl reabsorption

Question 4

Uroguanylin and guanylin

Answer 4

Stimulated by ingestion of NaCl
Affects PT and CD
Will decrease H2O and NaCl reabsorption

Question 5

Sympathetic nerves

Answer 5

Decreases ECFV
Acts on PT, TAL, DT/CD
Will increase NaCl and H2O reabsorption

Question 6

Dopamine

Answer 6

Increases ECFV
Acts on PT
Decreases H2O and NaCl reabsorption

Question 7

AVP

Answer 7

Stimulated by increased plasma Osmolality and decreased ECFV
Acts on DT/CD
Increases H2O reabsorption

Question 8

Furosemide

Answer 8

Thick ascending loop

Inhibits NaCl reabsorption by gifting for Cl-‘s spot in the carrier

Question 9

ADH

Answer 9

Collecting duct

Made permeable to water

Question 10

Thiazides

Answer 10

Cortical diluting segment of DCT
Inhibits reabsorption of Na and Cl and will enhance calcium reabsorption

Causes natriuresis and decreased BV/BP

Question 11

K+ sparing spironolactone

Answer 11

Inhibits Na/K+ exchanged in DT and CD to promoter K+ retention and Na/H2O loss

Hypotensive effect