Interstitial fluid between cell is 80% of ECF
Plasma in blood is 20% of ECF
Also includes lymph, cerebrospinal fluid, synovial fluid,
aqueous humor, vitreous body, endolymph, perilymph,
and pleural, pericardial, and peritoneal fluids
Copyright 2009, John Wiley &
Sons, Inc.
Body Fluid Compartments
Copyright 2009, John Wiley &
Sons, Inc.
Fluid Balance
2 barriers separate ICF, interstitial fluid and plasma
Plasma membrane separates ICF from surrounding
interstitial fluid…
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