BSC 215-Hicks -Exam 3 Questions and
Answers 2026.
segmental arteries - Answer Blood enters the kidney through the renal artery, which branches
into the _______.
papillary duct > minor calyx > major calyx > renal pelvis > ureter > bladder - Answer As urine
leaves the collecting duct, it takes which of the following paths to the bladder?
sense variations in tubular fluid composition - Answer Three kinds of special cells occur in the
juxtaglomerular apparatus. What is the function if macula densa?
8 mm Hg - Answer Calculate the net filtration pressure (NFP) entering the nephron given the
following:
Glomerular hydrostatic pressure (GHP) = 58 mmHg
Capsular pressure (CP) = 17 mm Hg
Colloid osmotic pressure (COP) = 33 mm Hg
angiotensin II - Answer The Renin-Angiotensin-Aldosterone mechanism is a hormone
mechanism to control the glomerular filtration rate. What is the active hormone that elevates
blood pressure?
false - Answer During tubular reabsorption in the proximal convoluted tubule (PCT),
substances that enter the tubule epithelial cells and pass through the cytoplasm are said to go
through the paracellular matrix.
aldosterone - Answer Which hormone is often called the salt-retaining hormone because it
acts on the nephron loop, DCT, and collecting duct to help the body retain salt and water?
true - Answer The ability of the collecting duct to reabsorb (conserve) water depends on the
increased salinity of the renal medulla
as fluid travels up the ascending limb of the nephron loop, water, Na+, K+, and CI- are pumped
into the medullary tissue (ECF)
NOT THE RIGHT ANSWER - Answer 22. Which of the following is TRUE of the countercurrent
multiplier action of the nephron loop?
, antidiuretic hormone (ADH) - Answer Which of the following hormones is secreted in response
to dehydration, making the collecting duct more permeable to water, thus causing increased
water retention?
renal autoregulation - Answer ____________ is the ability of the nephrons to adjust their own
blood flood and glomerular filtration rate without external control.
glomerular hydrostatic pressure (GHP) - Answer Which of the following pressures is the
highest in the glomerulus and is the primary means of pushing solutes and water out of the
blood and across the filtration membrane?
true - Answer The fenestrated epithelium of the glomerular capillaries has pores small enough
to keep blood cells from entering the filtrate.
H2O - Answer Fill in the blank to complete the equation for the bicarbonate buffer system:
CO2 + ______ <-> H2CO3 <-> HCO3- + H+
becomes lower - Answer As more and more hydrogen ions are added to a solution, the pH:
the kidneys excrete H+ and the lungs excrete CO2 - Answer How do the lungs and kidneys
work together to raise the pH of the blood?
electrolytes - Answer Which of the following dissociates into ions when placed in water?
cytosol of cells - Answer Which of the following accounts for the majority of our total body
water?
hyponatremia - Answer What condition accompanies over hydration, or hypotonic hydration?
sodium ion - Answer What is the most abundant extracellular cation?
hypokalemia causes the membrane potential to become hyperpolarized - Answer Determine
the effect of hypokalemia on a cell's resting membrane potential.
carbonic acid - Answer Determine the product formed when hydrogen ions from a strong acid
are accepted by a bicarbonate ion.
hypoventilation - Answer What leads to respiratory acidosis?
Answers 2026.
segmental arteries - Answer Blood enters the kidney through the renal artery, which branches
into the _______.
papillary duct > minor calyx > major calyx > renal pelvis > ureter > bladder - Answer As urine
leaves the collecting duct, it takes which of the following paths to the bladder?
sense variations in tubular fluid composition - Answer Three kinds of special cells occur in the
juxtaglomerular apparatus. What is the function if macula densa?
8 mm Hg - Answer Calculate the net filtration pressure (NFP) entering the nephron given the
following:
Glomerular hydrostatic pressure (GHP) = 58 mmHg
Capsular pressure (CP) = 17 mm Hg
Colloid osmotic pressure (COP) = 33 mm Hg
angiotensin II - Answer The Renin-Angiotensin-Aldosterone mechanism is a hormone
mechanism to control the glomerular filtration rate. What is the active hormone that elevates
blood pressure?
false - Answer During tubular reabsorption in the proximal convoluted tubule (PCT),
substances that enter the tubule epithelial cells and pass through the cytoplasm are said to go
through the paracellular matrix.
aldosterone - Answer Which hormone is often called the salt-retaining hormone because it
acts on the nephron loop, DCT, and collecting duct to help the body retain salt and water?
true - Answer The ability of the collecting duct to reabsorb (conserve) water depends on the
increased salinity of the renal medulla
as fluid travels up the ascending limb of the nephron loop, water, Na+, K+, and CI- are pumped
into the medullary tissue (ECF)
NOT THE RIGHT ANSWER - Answer 22. Which of the following is TRUE of the countercurrent
multiplier action of the nephron loop?
, antidiuretic hormone (ADH) - Answer Which of the following hormones is secreted in response
to dehydration, making the collecting duct more permeable to water, thus causing increased
water retention?
renal autoregulation - Answer ____________ is the ability of the nephrons to adjust their own
blood flood and glomerular filtration rate without external control.
glomerular hydrostatic pressure (GHP) - Answer Which of the following pressures is the
highest in the glomerulus and is the primary means of pushing solutes and water out of the
blood and across the filtration membrane?
true - Answer The fenestrated epithelium of the glomerular capillaries has pores small enough
to keep blood cells from entering the filtrate.
H2O - Answer Fill in the blank to complete the equation for the bicarbonate buffer system:
CO2 + ______ <-> H2CO3 <-> HCO3- + H+
becomes lower - Answer As more and more hydrogen ions are added to a solution, the pH:
the kidneys excrete H+ and the lungs excrete CO2 - Answer How do the lungs and kidneys
work together to raise the pH of the blood?
electrolytes - Answer Which of the following dissociates into ions when placed in water?
cytosol of cells - Answer Which of the following accounts for the majority of our total body
water?
hyponatremia - Answer What condition accompanies over hydration, or hypotonic hydration?
sodium ion - Answer What is the most abundant extracellular cation?
hypokalemia causes the membrane potential to become hyperpolarized - Answer Determine
the effect of hypokalemia on a cell's resting membrane potential.
carbonic acid - Answer Determine the product formed when hydrogen ions from a strong acid
are accepted by a bicarbonate ion.
hypoventilation - Answer What leads to respiratory acidosis?
