Overview of Renal Physiology Flashcards
1
Q
What is the main physiological function of the kidneys?
A
Maintenance of the composition and volume of the extracellular fluid
2
Q
Greater volume, ICF or ECF?
A
ICF. By like almost double
3
Q
T/F: Both compartments have a circulating component of about 3L
A
True. Blood cells (ICF) and plasma (ECF)
4
Q
Reabsorption involves the movement of substances FROM the ___ and TO the ____
A
Tubule; Peritubular capillary
5
Q
Secretion involves the movement of substances FROM the ____ and TO the ___
A
Peritubular capillary; Tubule
6
Q
What component of the ECF to the kidneys act upon?
A
Plasma
7
Q
How much of the CO do the kidneys receive?
A
25%
8
Q
Normal value of the filtration fraction?
A
20%, or .2
9
Q
Normal GFR?
A
130ml/min
10
Q
Rate-limiting step in RAAS?
A
Production and secretion of renin by the kidneys.
