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Intracellular fluid
-Fluid contained within a cell; it represents about two thirds of body fluid
-63% of fluid in the body
-Potassium and Phosphate
Extracellular fluid
-Fluid found outside the cells; it represents about one-third of all body fluid
-Sodium and Chloride
Ions
Positively or negatively charged atom
Electrolytes
-Minerals that separate into positively or negatively charged ions in water
-They are able to transmit an electrical current
Osmosis
The passage of water through a membrane from a less concentrated compartment to a more concentrated compartment
Isotonic
Having equal concentration of solutes
Hypotonic
-Having low concentration of solutes
-If solute concentration inside cell is greater than outside: water flows in, causing the cell to swell
Hypertonic
-Having high concentration of solutes
-If concentration outside the cell is greater than inside: water flows out, causing the cell to shrink
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