Fluid & Electrolytes (Fluids)

Sodium

Potassium

pressure exerted on the walls of blood vessels

pressure exerted by the protein in the plasma

movement of fluid from an area of solute concentration to an area of higher solute concentration

moment of molecules and ions from an area of higher concentration to an area of lower concentration

movement of water and solutes from an area of higher hydrostatic pressure to an area of lower hydrostatic pressure

• -physiologic pump that moves fluid from an area of lower concentration to one of higher concentration
• -movement against the concentration gradient
• -use of ATP
• -soduim-potassium pump maintains the higher concentration of extracellular sodium and intracellular potassium