1. it is also important that define osmosis la liquid utility outside the cell, because it is the highest concentration outside the cell and the cell membrane is the fewest that osmotic pressure and water distribution in the various sections. Prevent waste of water bodies. 2. the composition of the buffer system in the body by the sodium in the extracellular fluid, together with chloride and carbonic NET binaries. Acid alkaline balance control –3. regarding the functioning of muscles by a component part in the work on neural stimulation, muscle (neuromuscular irritability), which is a schedule change in electric potential (action potential), with a ratio of concentrations (sodium + potassium)/(calcium + magnesium + hydrogen).4. about the absorption of single sugar molecules and amino acids by the transport of glucose and amino acids in the digestive tract and kidney tubes, is a process that relies on energy, coupled with the transport of sodium (Na-dependent active transport), especially during that disrupts the cells.5. about the balance, potassium and other electrolytes electrolyte balance outside cells control operations that are associated with the transport of sodium in gastrointestinal organs include: Urinary system and exchange between internal, external to the cell. This feature is similar to the extracellular fluid volume control.6. as a component of bones and teeth structure.7. as a component of the digestive juice The water shed out in the digestive system, which has about 8 liters to 1,000 ml with the sodium.
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