Phys 28-31: Kidney

Question 1

Chloride in GI tract is transported via

Answer 1

Passive diffusion

Question 2

Juxtaglomerular complex function

Answer 2

Provides feedback to control GFR

Question 3

Diluting segement is where

Answer 3

Early distal tubule

Question 4

Thiazide diuretics inhibit

Answer 4

Na/Cl co transporter in early distal tubule

Question 5

Principal cells in tubule absorb

Answer 5

Water and sodium

Question 6

Intercalated cells function

Answer 6

Reabsorption and secretion of hydrogen and potassium

Question 7

Site for potassium sparing diuretics

Answer 7

Intercalated cells

Question 8

Type A vs B intercalated cells

Answer 8

A: hydrogen secretion, potassium reabsorption

B: Hydrogen absorption, secretion of bicarb

Question 9

Site of ADH action

Answer 9

Medullary collecting duct

Question 10

How is renal medulla osmolality raised

Answer 10

Urea transporters in medullary collecting duct raise osmolality

Question 11

Agiotensin II kidney effect

Answer 11

Increases water and sodium reabsorption

Question 12

ANP function in kidney

Answer 12

Decreases water and sodium resorption

Question 13

PTH in kidney

Answer 13

Increased reabsorption of calcium

Decreased Phosphate reabsorption

Question 14

Sympathetic nervous system effect on kidney

Answer 14

Increased sodium reabsorption

Question 15

Renal plasma flow measured with

Answer 15

Para-aminohippuric acid (PAH)

Question 16

GFR estimated with

Answer 16

Inulin or creatinine

Question 17

ADH secretion mechanism

Answer 17

Hypothalmic osmoreceptor cells detect low osmolarity and send signals to posterior pituitary gland

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