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bio 669 exam 2024/2025 with 100% correct answers
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  • Bio 669 B

water makes up ____% in men correct answers60% water makes up ____% in women correct answers50% made up of 2/3 (40%) of water correct answersintracellular made up of 1/3 (20%) of water correct answersextracellular what two things make up extracellular fluid? correct answersIntravascular...

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  • November 20, 2024
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  • 2024/2025
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bio 669 exam 2024/2025

water makes up ____% in men correct answers60%



water makes up ____% in women correct answers50%



made up of 2/3 (40%) of water correct answersintracellular



made up of 1/3 (20%) of water correct answersextracellular



what two things make up extracellular fluid? correct answersIntravascular and interstitial



what % of intravascular is in the extracellular? correct answers25%



what % of interstitial is in the extracellular? correct answers75%



who has more water, men or women? correct answersmen



who has more water, elderly or pediatric? correct answerspediatric



why does total body water decrease as we age? correct answersdecreased free fat and muscle mass

renal decline

diminished thirst perception



Starling forces correct answersforces affecting movement of fluid between cells and spaces



net filtration correct answersforces favoring filtration minus forces opposing filtration

,Osmolarity correct answersconcentration of osmotically active particles in a solution



isosmotic correct answerssolutions with the same concentrations of solute particles (osmolarity)



hyposomotic correct answerssolution with lower osmotic pressure. lower outside



hyperosmotic correct answerssolution with higher osmolarity. higher inside.



isotonic correct answerstwo solutions with the same osmotic pressure



Hypotonic correct answerswhen comparing two solutions, the solution with the lesser concentration of
solutes within the cell



Hypertonic correct answerswhen comparing two solutions, the solution with the greater concentration
of solutes within the cell



Forces favoring filtration correct answersCapillary hydrostatic pressure (blood pressure) and interstitial
oncotic pressure (water-pulling)



Forces favoring reabsorption correct answersPlasma (capillary) oncotic pressure (water-pulling)

Interstitial hydrostatic pressure



edema correct answersaccumulation of fluid within the interstitial spaces



causes of edema correct answersincreased capillary hydrostatic pressure (increased BP),

decrease of plasma oncotic pressure,

obstruction of lymphatic circulation,

increased capillary permeability

, What is ascites? correct answersaccumulation of fluid in the peritoneal cavity



example of increased capillary hydrostatic pressure correct answersvenous obstruction, salt and water
retention, heart failure, renal failure



what does increased capillary hydrostatic pressure cause? correct answersforces fluid into tissues



causes of decreased capillary (plasma) oncotic pressure correct answersdecreased 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? correct answersfluid movement into the tissues

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



what are examples of increased capillary permeability? correct answersburns and inflammation



what does increased capillary permeability do? correct answersproteins escape= loss of plasma proteins
to interstitial space (thus increasing tissue oncotic pressure and decreased capillary oncotic pressure)



papilledema correct answersswelling and inflammation of the optic nerve at the point of entrance into
the eye through the optic disk



What causes papilledema? correct answersoften caused by increase in intracranial pressure



what is the primary extracellular fluid cation (positive charged ion)? correct answersSodium



movement of sodium in cell does what to hydrogen? correct answerspushes hydrogen out.



increase in sodium does what to fluid volume? correct answersincreases fluid volume

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