The Carbonic Acid Bicarbonate Buffer System Functions Mainly To __________.

Question: stabilizing the volumes, solute concentrations and pH of the ECF and the ICF involves three interrelated processes

Answer: 1. fluid balance

2. electrolyte balance

3. acid-base balance

Question: fluid balance

Answer: water gains - digestive system

water loss- urinary system and sweat

ions create concentration gradients that are removed by osmosis

Question: aldosterone

Answer: promotes sodium retention in the kidneys.

Question: What is the most abundant anion in the intracellular fluid?

Answer: phosphate

Question: The principal cation in intracellular fluid is

Answer: potassium

Question: The release of atrial naturetic peptides from the heart will cause the body to

Answer: decrease ECF and excrete sodium ions.

Question: largest subdivisions of ECF

Answer: 1. interstitial fluid of peripheral tissues

2. plasma of circulating blood

Question: the principal ions in the ECF are

Answer: sodium, chloride, bicarbonate

Question: the principal ions in the ICF are

Answer: potassium, magnesium, and phosphate ions

Question: all the homeostatic mechanisms that monitor and adjust the composition of body fluids respond to changes in the __________

Answer: ECF not the ICF because ICF is in individual cells monitored by themselves

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