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Flashcards in Renal Physio Deck (32):
0

Location of kidney

T12-L3

1

Wt of kidney

150g

2

Aka "glomerular cells of the afferent arterioles"

JG cells

3

JG cells are found where

Afferent arterioles

4

Location of macula densa

Distal tubule

5

Workhorse of the tubular system

PCT

6

Substances that are filtered only

Inulin, creatinine

7

Substances that are completely reabsorbed

Glucose, amino acids

8

Substances that are filtered then secreted

PAH, organic acida and bases

9

Normal GFR

125ml/min or 180L/day

10

GFR/RPF

Filtration fraction

11

Hormone that preserves GFR

Angiotensin II

12

Local autoregulation occurs at BP of

75-160mmHg

13

Constant sodium load delivered to distal tubule

Tubuloglomerular feedback

14

Vasoconstricts afferent arteriole

Adenosine

15

Vasodilates afferent arteriole

Nitric oxide

16

Percentage of solute reabsorbed is held constant

Glomerulotubular balance

17

All substances appear in urine; all neohrons exhibit saturation

Renal transport maximum

18

Responsive to vasopressin

Collecting duct

19

Area where principal cells and intercalated cells are found

Second part of distal tubule

20

Site of action of aldosterone

Distal tubule

21

Effect of alcohol on ADH secretion

Decreases ADH secretion

22

Regulates glucose

Na glucose cotransport

23

Threshold for glucose

200mg/100ml

24

Glucose transport from lumen to PCT

SGLT 2

25

Glucose transport from PCT to peritubular capillaries

GLUT 1 and GLUT 2

26

Factors that shift K into cells

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

27

Where does regulation of K occur

Late distal and cortical collecting tubules

28

Serves as urinary buffer for H

Unreabsorbed phosphate

29

Countercurrent multiplier

Loop of henle

30

Countercurrent exchanger

Vasa recta

31

where is the thirst center found?

Anterovrntral wall of 3rd ventricle and preoptic nuclei