APK2105c PhysioEx 9 – Flashcards
Unlock all answers in this set
Unlock answersquestion
What are the two main parts of the nephron?
answer
the renal corpuscle and the renal tubule
question
Which of the following describes the order in which blood flows through the nephron?
answer
afferent arteriole, glomerulus, efferent arteriole
question
Which of the following is NOT a function of the kidneys?
answer
exchange of oxygen and carbon dioxide with the tissues
question
Which of the following should NOT be found in the filtrate in the Bowman's capsule?
answer
white blood cells
question
Which structures form the filtration membrane in the nephron?
answer
glomerulus and the glomerular capsule
question
Which of the following resulted in an increase in glomerular filtration rate?
answer
decreasing the efferent arteriole diameter and increasing the afferent arteriole diameter
question
Which of the following resulted in a decrease in glomerular capillary pressure?
answer
increasing the efferent arteriole diameter and decreasing the afferent arteriole diameter
question
What is the normal range for glomerular filtration rate?
answer
80 - 140 ml/min
question
What is(are) the driving force(s) for filtration in the nephron?
answer
hydrostatic pressure gradients, osmotic pressure gradients and Starling forces
question
The functions of the nephron include all of the following EXCEPT _______.
answer
glomerular secretion
question
In this activity, we will explore the effect of _______.
answer
blood pressure on glomerular filtration rate
question
What is the name for the "ball" of capillaries found in the renal corpuscle?
answer
glomerulus
question
As the pressure in the beaker was increased, which of the following occurred?
answer
Glomerular filtration rate increased, and urine volume increased.
question
The pressure in the left source beaker simulates _______.
answer
blood pressure
question
With the valve between the collecting duct and the urinary bladder closed, _______.
answer
urine volume was zero
question
With the valve between the collecting duct and the urinary bladder closed and with the pressure increased, _______.
answer
the glomerular filtration rate increased and the glomerular pressure increased
question
Altering the radii of the afferent and efferent arterioles provides for _______.
answer
glomerular filtration rate homeostasis and glomerular hydrostatic pressure homeostasis
question
Because the alteration of the afferent or efferent arteriole occurs within the nephron, we refer to this mechanism as _______.
answer
intrinsic
question
Which of the following would decrease glomerular filtration rate?
answer
increasing the efferent arteriole radius and/or decreasing the afferent arteriole radius
question
In this activity, the drain beaker (second beaker in the flow) simulates the _______.
answer
renal vein
question
When the beaker pressure was lowered, which of the following decreased?
answer
glomerular pressure, glomerular filtration rate and urine volume
question
When blood pressure increases, what changes can occur to maintain glomerular filtration rate?
answer
constriction of the afferent arteriole and dilation of the efferent arteriole
question
When the efferent arteriole constricts, _______.
answer
the back pressure in the Bowman's capsule increases
question
Interstitial fluid is located in the _______.
answer
spaces surrounding the kidney tubule
question
Secretion of ADH would _______.
answer
decrease urine output
question
The reabsorption of water and solutes _______.
answer
is passive, depends on concentration gradients and is into the peritubular capillaries
question
When ADH is present in the filtrate, _______.
answer
urine concentration increases
question
What happened to the urine volume when the solute gradient in the interstitial space was increased?
answer
The urine volume decreased.
question
What happened to the urine concentration when the solute gradient in the interstitial space was increased?
answer
The urine concentration increased.
question
What will happen to the urine volume if ADH is NOT added to the collecting duct?
answer
The urine volume will increase.
