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bio 669 quiz 1 with Correct Answers

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bio 669 quiz 1 with Correct Answers water makes up ____% in men - ANSWER-60% water makes up ____% in women - ANSWER-50% made up of 2/3 (40%) of water - ANSWER-intracellular made up of 1/3 (20%) of water - ANSWER-extracellular what two things make up extracellular fluid? - ANSWER-Intravascular ...

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  • November 10, 2024
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  • 2024/2025
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bio 669 quiz 1 with Correct Answers


water makes up ____% in men - ANSWER✔✔-60%


water makes up ____% in women - ANSWER✔✔-50%


made up of 2/3 (40%) of water - ANSWER✔✔-intracellular


made up of 1/3 (20%) of water - ANSWER✔✔-extracellular


what two things make up extracellular fluid? - ANSWER✔✔-Intravascular and interstitial


what % of intravascular is in the extracellular? - ANSWER✔✔-25%


what % of interstitial is in the extracellular? - ANSWER✔✔-75%


who has more water, men or women? - ANSWER✔✔-men


who has more water, elderly or pediatric? - ANSWER✔✔-pediatric


why does total body water decrease as we age? - ANSWER✔✔-decreased free fat and muscle mass


renal decline


diminished thirst perception


Starling forces - ANSWER✔✔-forces affecting movement of fluid between cells and spaces


net filtration - ANSWER✔✔-forces favoring filtration minus forces opposing filtration


Osmolarity - ANSWER✔✔-concentration of osmotically active particles in a solution



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isosmotic - ANSWER✔✔-solutions with the same concentrations of solute particles (osmolarity)


hyposomotic - ANSWER✔✔-solution with lower osmotic pressure. lower outside


hyperosmotic - ANSWER✔✔-solution with higher osmolarity. higher inside.


isotonic - ANSWER✔✔-two solutions with the same osmotic pressure


Hypotonic - ANSWER✔✔-when comparing two solutions, the solution with the lesser concentration of

solutes within the cell


Hypertonic - ANSWER✔✔-when comparing two solutions, the solution with the greater concentration of

solutes within the cell


Forces favoring filtration - ANSWER✔✔-Capillary hydrostatic pressure (blood pressure) and interstitial

oncotic pressure (water-pulling)


Forces favoring reabsorption - ANSWER✔✔-Plasma (capillary) oncotic pressure (water-pulling)


Interstitial hydrostatic pressure


edema - ANSWER✔✔-accumulation of fluid within the interstitial spaces


causes of edema - ANSWER✔✔-increased capillary hydrostatic pressure (increased BP),


decrease of plasma oncotic pressure,


obstruction of lymphatic circulation,


increased capillary permeability


What is ascites? - ANSWER✔✔-accumulation of fluid in the peritoneal cavity




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example of increased capillary hydrostatic pressure - ANSWER✔✔-venous obstruction, salt and water

retention, heart failure, renal failure


what does increased capillary hydrostatic pressure cause? - ANSWER✔✔-forces fluid into tissues


causes of decreased capillary (plasma) oncotic pressure - ANSWER✔✔-decreased plasma albumin


-decreased synthesis of plasma proteins (cirrhosis, malnutrition)


-increased loss of plasma proteins (nephrotic syndrome)


increased Na+ and H2O retention (dilution of plasma proteins)


what does lymph obstruction cause? - ANSWER✔✔-fluid movement into the tissues


decreased transport of capillary filtered protein ( thus increasing tissue oncotic pressure)


what are examples of increased capillary permeability? - ANSWER✔✔-burns and inflammation


what does increased capillary permeability do? - ANSWER✔✔-proteins escape= loss of plasma proteins

to interstitial space (thus increasing tissue oncotic pressure and decreased capillary oncotic pressure)


papilledema - ANSWER✔✔-swelling and inflammation of the optic nerve at the point of entrance into

the eye through the optic disk


What causes papilledema? - ANSWER✔✔-often caused by increase in intracranial pressure


what is the primary extracellular fluid cation (positive charged ion)? - ANSWER✔✔-Sodium


movement of sodium in cell does what to hydrogen? - ANSWER✔✔-pushes hydrogen out.


increase in sodium does what to fluid volume? - ANSWER✔✔-increases fluid volume


what is the primary extracellular anion? - ANSWER✔✔-Chloride

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