PhysioEx Exercise 5 Activity 3
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PhysioEx Lab Report
Exercise 5: Cardiovascular Dynamics
Activity 3: Studying the E
ff
ect of Blood Vessel Length on Blood Flow Rate
Name: Joseph Ramirez
Date: 19 October 2023
Session ID: session-cc518724-218a-f768-8473-324a02c4942a
Pre-lab Quiz Results
You scored 100% by answering 4 out of 4 questions correctly.
Experiment Results
Predict Question
Stop & Think Questions
When the length of the blood vessel increases, which of the following also
increases?
You correctly answered:
both friction and surface area.
1
Blood vessel length decreases
You correctly answered:
when we lose weight.
2
Blood
fl
ow is
You correctly answered:
directly proportional to vessel radius to the fourth power.
3
Which of the following correctly describes resistance to
fl
ow?
You correctly answered:
Resistance to
fl
ow increases with increased vessel length.
4
Predict Question: What e
ff
ect do you think increasing the
fl
ow tube length will have
on the
fl
uid
fl
ow rate?
Your answer:
The
fl
uid
fl
ow rate will decrease.
1
What is the relationship between
fl
uid
fl
ow and
fl
ow tube length?
1
Experiment Data
Flow (ml/min)
Radius (mm)
Viscosity
Length (mm)
Pressure (mm
Hg)
90.8
3.0
3.5
10
100
60.6
3.0
3.5
15
100
45.4
3.0
3.5
20
100
36.3
3.0
3.5
25
100
30.3
3.0
3.5
30
100
26.0
3.0
3.5
35
100
22.7
3.0
3.5
40
100
Post-lab Quiz Results
You scored 100% by answering 4 out of 4 questions correctly.
You correctly answered:
They are inversely proportional to each other.
Which is more likely to occur on a daily basis?
You correctly answered:
changes in blood vessel diameter.
2
Increasing the
fl
ow tube length is analogous to increasing blood vessel length. How
did this a
ff
ect the
fl
ow rate?
You correctly answered:
The
fl
ow rate decreased.
1
Which of the following correctly describes the relationships between blood vessel
length, resistance, and blood
fl
ow?
You correctly answered:
Blood vessel length is directly proportional to resistance
and inversely proportional to blood
fl
ow.
2
Which of the following correctly describes the relationships between blood vessel
radius, resistance, and blood
fl
ow?
You correctly answered:
Blood vessel radius is inversely proportional to resistance
and directly proportional to blood
fl
ow.
3
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X a 2,4-floro, 5-methyl he XI
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