PhysioEx Exercise 5 Activity 3

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Oakland Community College *

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2640

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Chemistry

Date

Jun 19, 2024

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pdf

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7

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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: Megan Krolikowski Date: 20 May 2024 Session ID: session-426855c9-4796-737a-ef95-4318acf88a3a Pre-lab Quiz Results You scored 75% by answering 3 out of 4 questions correctly. Experiment Results Predict Question 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 ow is You correctly answered: directly proportional to vessel radius to the fourth power. 3 Which of the following correctly describes resistance to ow? Your answer: Resistance to ow increases with increased vessel radius. Correct answer: Resistance to ow increases with increased vessel length. 4 Predict Question: What e ff ect do you think increasing the ow tube length will have on the uid ow rate? Your answer: The uid ow rate will decrease. 1 https://media.pearsoncmg.com/bc/bc_0media_ap/physioex/10/ex5/act3/ 5/20/24, 7 : 09 PM Page 1 of 7
Stop & Think Questions 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 What is the relationship between uid ow and ow tube length? You correctly answered: They are inversely proportional to each other. 1 Which is more likely to occur on a daily basis? You correctly answered: changes in blood vessel diameter. 2 https://media.pearsoncmg.com/bc/bc_0media_ap/physioex/10/ex5/act3/ 5/20/24, 7 : 09 PM Page 2 of 7
https://media.pearsoncmg.com/bc/bc_0media_ap/physioex/10/ex5/act3/ 5/20/24, 7 : 09 PM Page 3 of 7
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