PhysioEx Exercise 9 Activity 2
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PhysioEx Exercise 9 Activity 2
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PhysioEx Lab Report
Exercise 9: Renal System Physiology
Activity 2: The Effect of Pressure on Glomerular Filtration
Name: JA
Date: 12 November 2023
Session ID: session-bf00e21c-ac1e-69ba-ea72-a555a8ab6653
Pre-lab Quiz Results
You scored 100% by answering 4 out of 4 questions correctly.
Experiment Results
Predict Questions
Stop & Think Questions
Which of the following forces promotes filtration?
You correctly answered: blood pressure in the glomerular capillaries.
1
The glomerular filtration rate can be altered by
You correctly answered: changing the afferent arteriole resistance.
2
In 24 hours human glomerular capillaries can filter as much as __________ liters of filtrate.
You correctly answered: 180.
3
Which of the following statements about the filtrate in the renal corpuscle is false
?
You correctly answered: Normally, more than 40% of the blood that enters the glomerular
capillaries becomes filtrate.
4
Predict Question 1: What will happen to the glomerular capillary pressure and filtration rate
if you increase the blood pressure in the left source beaker?
Your answer: Both pressure and filtration rate will increase.
1
Predict Question 2: What will happen to the filtrate pressure in Bowman's capsule (not
directly measured in this experiment) and filtration rate if you close the one-way valve
between the collecting duct and the urinary bladder?
Your answer: Pressure will increase and filtration rate will decrease.
2
11/12/23, 10:13 PM
PhysioEx Exercise 9 Activity 2
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Experiment Data
Afferent
Radius
(mm)
Efferent
Radius
(mm)
Beaker
Press. (mm
Hg)
Glomerular
Press. (mm
Hg)
Glom. Filt.
Rate
(ml/min)
Urine
Volume
(ml)
Valve
Status
0.10
0.30
70
44.44
0.00
0.00
open
0.10
0.30
80
44.45
0.00
0.00
open
0.10
0.30
100
44.46
0.00
0.00
open
0.10
0.30
70
44.44
0.00
0.00
open
0.10
0.30
70
44.44
0.00
0.00
closed
Post-lab Quiz Results
You scored 100% by answering 4 out of 4 questions correctly.
Review Sheet Results
What is the important relation that underlies the observed increase in glomerular filtration
rate when the blood pressure is increased?
You correctly answered: pressure and flow are directly proportional.
1
What medical condition is analogous to the closed valve?
You correctly answered: a tumor obstructing the renal tubule.
2
In humans, the glomerular filtration rate normally ranges from
You correctly answered: 80 to 140 ml/min.
1
Which of the following does not
have a significant impact on the glomerular filtration rate?
You correctly answered: renal tubule length.
2
In the absence of any regulatory mechanisms, what do you think would happen to the
glomerular filtration rate of a person who experiences an increase in blood pressure?
You correctly answered: The glomerular filtration rate could increase.
3
What would happen to the glomerular filtration rate of a person who experiences a large
hemorrhage?
You correctly answered: The glomerular filtration rate would decrease.
4
As blood pressure increased, what happened to the glomerular capillary pressure and the
glomerular filtration rate? How well did the results compare with your prediction?
1
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text-to-voice speech.
Course Progress: 99%
Powered by Google Transla
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Highlight any text to hear text-to-voice speech.
Time Left: 97 Min
Question 8 of 25
VGo to next question on answer
8. The urinary system's preservation of homeostasis involves all but which of the
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OA. Maintaining water balance within the body
OB. Filtering waste products from the bloodstream
OC. Maintaining the acid-base balance of the body
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Please select a label that corresponds to the structure, location, or function indicated.
Diaphragm
Hepatic veins
Inferior vena cava
Right adrenal (suprarenal) gland
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celac trunk
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Ms. Jackson is a single, 56-year-old woman with a 20-year history…
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text-to-voice speech.
Course Progress: 99%
Powered by Google Trahsiate
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Go to next question on answer
Time Left: 85 Min.
Question 10 of 25
10. Which of the following is a disorder in which red blood cells are found in
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OA. Uremia
OB. Polyuria
OC. Anuria
OD. Hematuria
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