Exercise 9: Renal System Physiology: Activity 3

Exercise 9: Renal System Physiology: Activity 3: Renal Response to Altered Blood Pressure Lab Report

Pre-lab Quiz Results

You scored 75% by answering 3 out of 4 questions correctly.

1. If all other variables are kept constant, how does the afferent arteriole radius affect the rate of glomerular filtration (select

all that apply)?

Your answer : c. An increased afferent arteriole radius will increase the rate of glomerular filtration.

Correct answer: c. An increased afferent arteriole radius will increase the rate of glomerular filtration. d. A decreased

afferent arteriole radius will decrease the rate of glomerular filtration.

2. If all other variables are kept constant, how does the efferent arteriole radius affect the rate of glomerular filtration (select

all that apply)?

You correctly answered: a. An increased efferent arteriole radius will decrease the rate of glomerular filtration. b. A

decreased efferent arteriole radius will increase the rate of glomerular filtration.

3. If all other variables are kept constant, how does blood pressure affect the rate of glomerular filtration (select all that

apply)?

You correctly answered: b. If blood pressure goes up, the rate of glomerular filtration goes up. d. If blood pressure goes

down, the rate of glomerular filtration goes down.

4. In the absence of other renal processes (including tubular reabsorption and secretion), more glomerular filtration leads

to a larger urine volume.

You correctly answered: a. true

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Experiment Results

Predict Question:

Predict Question: What will happen to the glomerular capillary pressure rate and glomerular filtration rate if both of these

arteriole radii changes are implemented simultaneously with the low blood pressure condition?

Your answer : c. Glomerular filtration rate and pressure will only increase to the levels measured in the constricted efferent

arteriole experiment.

Stop & Think Questions:

If blood pressure were to drop (for...