Term
| Different fluid compartments |
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Definition
ECF: 33% total: 8% plasma; 25% ISF
ICF: 67% |
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Term
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Definition
TBW - tritium oxide (heavy water)
ECF - mannitol
RBC - Chromium 51
Plasma: Evans blue dye
ISF: ECF - Plasma
ICF: TBW - ECF |
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Term
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Definition
| J = PA (CA-CB): J is net diffusion; P is permeability; A is surface area; Cs are concentration in compartments |
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Term
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Definition
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Term
| Primary active transporters |
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Definition
Ca2+-ATPase of sarcoplasmic reticulum (SR) pumps 2 Ca2+ ions from the cytosol for each ATP molecule
Na+, K+-ATPase pumps 3 sodium ions out of the cell for every 2 potassium ions pumped in |
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Term
| secondary active transport |
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Definition
Na+ and glucose (symport)
Na+ and amino acid (symport)
Ca (out) and Na (in) exchanger |
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Term
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Definition
| π = gCσRT, where π = osmotic pressure (atm or mm Hg), g = number of particles/mole (Osm/mol), C = concentration (mmol/L), σ = Reflection coefficient (varies from 0 to 1, where highly permeability is closer to 0 and impermeable = 1; most electrolytes range from 0.85 – 0.95), R = gas constant (0.082 L atm/mol K), and T = Absolute temperature (K) |
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