5 Questions
Which group has a lower percentage of total body water?
Adult females
What percentage of total body water is intracellular fluid (ICF)?
60%
What is the approximate composition of interstitial fluid in the extracellular fluid (ECF)?
80% interstitial fluid, 20% blood plasma
Which electrolyte is high in extracellular fluid (ECF) but low in intracellular fluid (ICF)?
Sodium (Na+)
What causes a membrane potential to develop across the two sides of the cell membrane?
Differences in the ionic composition of the fluids
Test your knowledge of the basic compositions of body fluids, including intracellular and extracellular fluid, interstitial fluid, and blood plasma. Understand the variations in total body water percentage among different demographics and body compositions.
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