Water Balance
No description yet. This curated deck is ready for daily study.
Card preview (11)
To maintain homeostasis, the body needs a relative constant concentration of what three factors?
(1) Osmotic pressure & water balance (2) Ions (electrolytes - cations & anions) (3) pH
What is the term used when the formation rate does not equal the removal rate?
↑ formation = accumulation ↑ removal = depletion
Intracellular fluid (ICF) makes up what fraction of total volume of water?
2/3.
Define the term interstitial.
To surround the cell.
What are common symptoms for water depletion?
Bleeding, diarrhea, vomiting, increased urination, sweating.
What are common symptoms of fluid accumulation?
Systemic edema, pulmonary edema, ascites (fluid around organs).
Describe osmosis and where it travels when in high concentrations.
A process by which molecules of a solvent tend to pass through a semipermeable membrane from a less concentrated solution into a more concentrated one, thus equalizing the concentrations on each side of the membrane.
Describe reverse osmosis and where it travels when in high concentrations.
A process by which a solvent passes through a porous membrane in the direction opposite to that for natural osmosis when subjected to a hydrostatic pressure greater than the osmotic pressure.
Describe oncotic pressure and how it relates to proteins.
Osmotic pressure occurs when there is a higher concentration of protein on the plasma side than the interstitial side of the cell membrane.
Oncotic pressure exists with ___ fluid only.
extravascular.
An imbalance of water is the cause of edema formation, what are some ways edema can form?
(1) ↑ capillary hydrostatic pressure (2) ↓ plasma oncotic pressure (3) Inflammatory processes (4) Obstruction in lymphatics (5) ↑ interstitial oncotic pressure