Renal Physio

Question 0

Wt of kidney

Answer 0

150g

Question 1

Location of kidney

Answer 1

T12-L3

Question 2

Aka “glomerular cells of the afferent arterioles”

Answer 2

JG cells

Question 3

JG cells are found where

Answer 3

Afferent arterioles

Question 4

Location of macula densa

Answer 4

Distal tubule

Question 5

Workhorse of the tubular system

Answer 5

PCT

Question 6

Substances that are filtered only

Answer 6

Inulin, creatinine

Question 7

Substances that are completely reabsorbed

Answer 7

Glucose, amino acids

Question 8

Substances that are filtered then secreted

Answer 8

PAH, organic acida and bases

Question 9

Normal GFR

Answer 9

125ml/min or 180L/day

Question 10

GFR/RPF

Answer 10

Filtration fraction

Question 11

Hormone that preserves GFR

Answer 11

Angiotensin II

Question 12

Local autoregulation occurs at BP of

Answer 12

75-160mmHg

Question 13

Constant sodium load delivered to distal tubule

Answer 13

Tubuloglomerular feedback

Question 14

Vasoconstricts afferent arteriole

Answer 14

Adenosine

Question 15

Vasodilates afferent arteriole

Answer 15

Nitric oxide

Question 16

Percentage of solute reabsorbed is held constant

Answer 16

Glomerulotubular balance

Question 17

All substances appear in urine; all neohrons exhibit saturation

Answer 17

Renal transport maximum

Question 18

Responsive to vasopressin

Answer 18

Collecting duct

Question 19

Area where principal cells and intercalated cells are found

Answer 19

Second part of distal tubule

Question 20

Site of action of aldosterone

Answer 20

Distal tubule

Question 21

Effect of alcohol on ADH secretion

Answer 21

Decreases ADH secretion

Question 22

Regulates glucose

Answer 22

Na glucose cotransport

Question 23

Threshold for glucose

Answer 23

200mg/100ml

Question 24

Glucose transport from lumen to PCT

Answer 24

SGLT 2

Question 25

Glucose transport from PCT to peritubular capillaries

Answer 25

GLUT 1 and GLUT 2

Question 26

Factors that shift K into cells

Answer 26

K AIBA- aldostorone, insulin, b adrenergic stimulation, alkalosis

Question 27

Where does regulation of K occur

Answer 27

Late distal and cortical collecting tubules

Question 28

Serves as urinary buffer for H

Answer 28

Unreabsorbed phosphate

Question 29

Countercurrent multiplier

Answer 29

Loop of henle

Question 30

Countercurrent exchanger

Answer 30

Vasa recta

Question 31

where is the thirst center found?

Answer 31

Anterovrntral wall of 3rd ventricle and preoptic nuclei