4. Body Fluid Volume
Body fluid
60% (45-75)
water
Intracellular Extracellular
40 % 20 %
(42 liter in 70 kg (14 liter in 70 kg
young adult) young adult)
Interstitial Plasma Transcellular
15 % 5% 1-3 %
(10.5 liter in 70 kg (3.5 liter in 70 kg (Cerebrospinal)
young adult) young adult) (Aqueous humor)
12. Decreased ADH
release from
posterior
pituitary
Decreased
plasma ADH
Cardiovascular
stretch receptor
Osmoreceptor
Decreased
Increased collecting duct
extracellular water
Ingestion of 1L
fluid volume permiability
of water
Decreased
plasma
osmolarity
Decreased water
Normal fluid reabsorption
volume
Increased water
excretion
13. Increased ADH
release from
posterior
pituitary
Increased plasma
ADH
Cardiovascular
stretch receptor
Osmoreceptors
Increased
Decreased collecting duct
extracellular water
Thirst permiability
Dehydration fluid volume
Increased
plasma
osmolarity
Increased
water intake Increased water
reabsorption
Normal fluid
volume
Decreased water
excretion