BIO 669 UPDATED ACTUAL QUESTIONS
AND CORRECT ANSWERS FULL SOLUTION
●● 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
●● 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
●● 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
AND CORRECT ANSWERS FULL SOLUTION
●● 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
●● 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
●● 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
