Water system Flashcards
Total body water volume is _ liters & __ % body weight
40 L 60
ICF volume is _ liters & __ % body weight
25 L 40%
ECF volume is _ liters & __ % body weight
15 L 20%
IF volume is _ liters & __ % body weight
12 L 80%
Plasma volume is _ liters & __ % body weight
3 L 20%
Osmotic pressure is a ___ force
pulling
Hydrostatic pressure is a ____ force
pushing
Osmotic pressure is proportional to _____ in a solution
number of particles in a solution
Water intake ____ water output
=
_____ water (water of oxidation is water produced by cellular _____
metabolic
respiration
_____ water loss is loss through ___ & ____, perspiration, and feces.
insensible
skin & lungs
Osmolality is maintained by _____ center in the _____ of the brain
thirst
hypothalamus
The rise in osmolality stimulates _____ & causes the release of ___
thirst
ADH
What is the main electrolyte?
Na+Cl
Salt controls _____ movements & provides ____ for excitability
fluid
minerals
Hypernatremia
Hyponatremia
Na+ high in blood
Na+ low in blood
Hyperkalemia
Hypokalemia
K+ high in blood
K+ low in blood
Hypercalcemia
Hypocalcemia
Ca+ high in blood
Ca+ low in blood
____ is the most abundant cation in ____
salt
ECF
Na+ is the only ___ exerting significant ____ pressure
cation
osmotic
Na concentration determines ____ of water in ECF
osmolality
___ of Na determines ____ volume & BP
content
ECF
How many known receptors monitor Na+ levels
none
____ plays the biggest role in Na+ regulation by kidneys
aldosterone
Where is Na+ reabsorbed
PCT
ANP is the ____. It inhibits ADH, Renin, Aldosterone. which means ANP _____ BP.
antagonist
lowers
