Renal Physiology

Question 1

Potassium is reabsorbed in

Answer 1

Alpha-intercalated cells

Question 2

Potassium is secreted in

Answer 2

Principal cells

Question 3

What change in hematocrit will occur in hyperosmotic volume contraction?

Answer 3

None

Question 4

What change in hematocrit will occur in hypoosmotic volume expansion?

Answer 4

None

Question 5

ADH increases the permeability of ___ cells

Answer 5

principal cells

Question 6

Which is a better buffer: oxyhemoglobin or deoxyhemoglobin?

Answer 6

deoxyhemoglobin

Question 7

True or false: reabsorption of HCO3 results in secretion of H+

Answer 7

false

Question 8

ECF volume expansion results in ___ HCO3- reabsorption

Answer 8

decreased

contraction alkalosis

Question 9

Effect of hyperkalemia on NH3 synthesis

Answer 9

decreased

Question 10

juxtaglomerular cells are found in

Answer 10

afferent arterioles

Question 11

only diuretic causing acidosis

Answer 11

carbonic anhydrase inhibitors

Question 12

In tubuloglomerular feedback, ___ is held constant

Answer 12

sodium load

Question 13

In glomerulotubular balanc, ___ is held constant

Answer 13

percentage of solute reabsorbed

Question 14

glucose transport from lumen to tubule cell

Answer 14

SGLT-2

Question 15

glucose transport from tubule cell to peritubular capillaries

Answer 15

GLUT-1 and GLUT-2

Question 16

site of maximal absorption of magnesium

Answer 16

thick ascending limb of loop of Henle

Question 17

ADH V1 receptors

Answer 17

arterioles

Question 18

ADH V2 receptors

Answer 18

collecting duct

Question 19

Thirst center

Answer 19

anteroventricularr wall of third ventricle

preoptic nuclei

Question 20

Micturition center

Answer 20

pons

Question 21

Level of renin in essential hypertension

Answer 21

Decreased