bio 669 quiz 1 UPDATED ACTUAL Exam
Questions and CORRECT Answers
water makes up ____% in men - CORRECT ANSWER - 60%
water makes up ____% in women - CORRECT ANSWER - 50%
made up of 2/3 (40%) of water - CORRECT ANSWER - intracellular
made up of 1/3 (20%) of water - CORRECT ANSWER - extracellular
what two things make up extracellular fluid? - CORRECT ANSWER - Intravascular and
interstitial
what % of intravascular is in the extracellular? - CORRECT ANSWER - 25%
what % of interstitial is in the extracellular? - CORRECT ANSWER - 75%
who has more water, men or women? - CORRECT ANSWER - men
who has more water, elderly or pediatric? - CORRECT ANSWER - pediatric
why does total body water decrease as we age? - CORRECT ANSWER - decreased free
fat and muscle mass
renal decline
diminished thirst perception
,Starling forces - CORRECT ANSWER - forces affecting movement of fluid between cells
and spaces
net filtration - CORRECT ANSWER - forces favoring filtration minus forces opposing
filtration
Osmolarity - CORRECT ANSWER - concentration of osmotically active particles in a
solution
isosmotic - CORRECT ANSWER - solutions with the same concentrations of solute
particles (osmolarity)
hyposomotic - CORRECT ANSWER - solution with lower osmotic pressure. lower
outside
hyperosmotic - CORRECT ANSWER - solution with higher osmolarity. higher inside.
isotonic - CORRECT ANSWER - two solutions with the same osmotic pressure
Hypotonic - CORRECT ANSWER - when comparing two solutions, the solution with the
lesser concentration of solutes within the cell
Hypertonic - CORRECT ANSWER - when comparing two solutions, the solution with the
greater concentration of solutes within the cell
Forces favoring filtration - CORRECT ANSWER - Capillary hydrostatic pressure (blood
pressure) and interstitial oncotic pressure (water-pulling)
Forces favoring reabsorption - CORRECT ANSWER - Plasma (capillary) oncotic pressure
(water-pulling)
, Interstitial hydrostatic pressure
edema - CORRECT ANSWER - accumulation of fluid within the interstitial spaces
causes of edema - CORRECT ANSWER - increased capillary hydrostatic pressure
(increased BP),
decrease of plasma oncotic pressure,
obstruction of lymphatic circulation,
increased capillary permeability
What is ascites? - CORRECT ANSWER - accumulation of fluid in the peritoneal cavity
example of increased capillary hydrostatic pressure - CORRECT ANSWER - venous
obstruction, salt and water retention, heart failure, renal failure
what does increased capillary hydrostatic pressure cause? - CORRECT ANSWER - forces
fluid into tissues
causes of decreased capillary (plasma) oncotic pressure - CORRECT 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? - CORRECT ANSWER - fluid movement into the
tissues
decreased transport of capillary filtered protein ( thus increasing tissue oncotic pressure)
Questions and CORRECT Answers
water makes up ____% in men - CORRECT ANSWER - 60%
water makes up ____% in women - CORRECT ANSWER - 50%
made up of 2/3 (40%) of water - CORRECT ANSWER - intracellular
made up of 1/3 (20%) of water - CORRECT ANSWER - extracellular
what two things make up extracellular fluid? - CORRECT ANSWER - Intravascular and
interstitial
what % of intravascular is in the extracellular? - CORRECT ANSWER - 25%
what % of interstitial is in the extracellular? - CORRECT ANSWER - 75%
who has more water, men or women? - CORRECT ANSWER - men
who has more water, elderly or pediatric? - CORRECT ANSWER - pediatric
why does total body water decrease as we age? - CORRECT ANSWER - decreased free
fat and muscle mass
renal decline
diminished thirst perception
,Starling forces - CORRECT ANSWER - forces affecting movement of fluid between cells
and spaces
net filtration - CORRECT ANSWER - forces favoring filtration minus forces opposing
filtration
Osmolarity - CORRECT ANSWER - concentration of osmotically active particles in a
solution
isosmotic - CORRECT ANSWER - solutions with the same concentrations of solute
particles (osmolarity)
hyposomotic - CORRECT ANSWER - solution with lower osmotic pressure. lower
outside
hyperosmotic - CORRECT ANSWER - solution with higher osmolarity. higher inside.
isotonic - CORRECT ANSWER - two solutions with the same osmotic pressure
Hypotonic - CORRECT ANSWER - when comparing two solutions, the solution with the
lesser concentration of solutes within the cell
Hypertonic - CORRECT ANSWER - when comparing two solutions, the solution with the
greater concentration of solutes within the cell
Forces favoring filtration - CORRECT ANSWER - Capillary hydrostatic pressure (blood
pressure) and interstitial oncotic pressure (water-pulling)
Forces favoring reabsorption - CORRECT ANSWER - Plasma (capillary) oncotic pressure
(water-pulling)
, Interstitial hydrostatic pressure
edema - CORRECT ANSWER - accumulation of fluid within the interstitial spaces
causes of edema - CORRECT ANSWER - increased capillary hydrostatic pressure
(increased BP),
decrease of plasma oncotic pressure,
obstruction of lymphatic circulation,
increased capillary permeability
What is ascites? - CORRECT ANSWER - accumulation of fluid in the peritoneal cavity
example of increased capillary hydrostatic pressure - CORRECT ANSWER - venous
obstruction, salt and water retention, heart failure, renal failure
what does increased capillary hydrostatic pressure cause? - CORRECT ANSWER - forces
fluid into tissues
causes of decreased capillary (plasma) oncotic pressure - CORRECT 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? - CORRECT ANSWER - fluid movement into the
tissues
decreased transport of capillary filtered protein ( thus increasing tissue oncotic pressure)
