BIOS255 Week 2 Cardiovascular System: Heart
Learning outcomes:
1. Identify the chambers of the heart.
2. Identify the location and function of valves within the heart.
3. Describe the flow of blood through the heart.
4. Define stroke volume and cardiac output.
5. Understand how the cardiovascular system responds to exercise.
6. Understand how cardiac output and blood pressure can be measured.
Introduction:
The heart is a strong muscular pump with two complementary sets of arteries: one for the
systemic and one for pulmonary circulation. The pumping of the heart is essential in the delivery
of oxygen to the millions of cells of the body and in the removal of their waste products. The
heart pushes deoxygenated blood to the lungs and oxygenated blood around the entire body. It
must continually beat to sustain life and so its muscular walls are made of specialized cardiac
muscle cells that carry their own intrinsic contractile rhythm.
All cells within the body must be supplied with enough oxygenated blood each minute to meet
their cellular metabolic demands. During exercise and processes such as tissue repair, cells are
metabolically active and require more oxygen from the blood, thus increasing the workload of
the heart. At rest, the metabolic demands of cells are less and therefore the heart doesn't need
to work as hard to supply them with the oxygen they require. The body must adapt to these
changing requirements. Cardiac output is a measure of the flow of blood. We will examine the
variables that make up the cardiac output, learn how to measure these variables, and then put
some experiment subjects to work to see how exercise alters cardiovascular function. Let’s
head to the cardiac exercise lab!
Assignment:
Part 1: Complete the Anatomy.TV activities for Cardiovascular System: Heart and Cardiac
output sections to prepare you for the Labster Virtual Cardiovascular function during exercise
simulation.
To access Anatomy.TV: Resources tab>Library>Library Resources-Database A-
Z>Anatomy.TV>Titles(default tab): Choose assigned system>choose assigned sections
This study source was downloaded by 100000845689434 from CourseHero.com on 05-12-2022 09:34:43 GMT -05:00
https://www.coursehero.com/file/71393628/BIOS255-Week-2-Cardiovascular-Heartdocx/
, You will then work through the material and activities by scrolling down on the right. This will
allow you to see and work through all activities for that section.
Part 2: Complete the Lab report.
Heart Lab report
1. Purpose:
Please state the purpose of the lab.
The purpose of this lab is to get a better understanding on cardiovascular
functioning.
2. Procedure:
Briefly discuss the procedure for this lab and experiment.
The procedure for this lab consist of learning heart rates, blood flow and
blood pressure.
What measurements did you obtain from the test subjects?
3. Data and Details:
HR at rest HR max SV at rest SV max CO at rest CO max
exercise exercise exercise
Subject A
This study source was downloaded by 100000845689434 from CourseHero.com on 05-12-2022 09:34:43 GMT -05:00
https://www.coursehero.com/file/71393628/BIOS255-Week-2-Cardiovascular-Heartdocx/
Learning outcomes:
1. Identify the chambers of the heart.
2. Identify the location and function of valves within the heart.
3. Describe the flow of blood through the heart.
4. Define stroke volume and cardiac output.
5. Understand how the cardiovascular system responds to exercise.
6. Understand how cardiac output and blood pressure can be measured.
Introduction:
The heart is a strong muscular pump with two complementary sets of arteries: one for the
systemic and one for pulmonary circulation. The pumping of the heart is essential in the delivery
of oxygen to the millions of cells of the body and in the removal of their waste products. The
heart pushes deoxygenated blood to the lungs and oxygenated blood around the entire body. It
must continually beat to sustain life and so its muscular walls are made of specialized cardiac
muscle cells that carry their own intrinsic contractile rhythm.
All cells within the body must be supplied with enough oxygenated blood each minute to meet
their cellular metabolic demands. During exercise and processes such as tissue repair, cells are
metabolically active and require more oxygen from the blood, thus increasing the workload of
the heart. At rest, the metabolic demands of cells are less and therefore the heart doesn't need
to work as hard to supply them with the oxygen they require. The body must adapt to these
changing requirements. Cardiac output is a measure of the flow of blood. We will examine the
variables that make up the cardiac output, learn how to measure these variables, and then put
some experiment subjects to work to see how exercise alters cardiovascular function. Let’s
head to the cardiac exercise lab!
Assignment:
Part 1: Complete the Anatomy.TV activities for Cardiovascular System: Heart and Cardiac
output sections to prepare you for the Labster Virtual Cardiovascular function during exercise
simulation.
To access Anatomy.TV: Resources tab>Library>Library Resources-Database A-
Z>Anatomy.TV>Titles(default tab): Choose assigned system>choose assigned sections
This study source was downloaded by 100000845689434 from CourseHero.com on 05-12-2022 09:34:43 GMT -05:00
https://www.coursehero.com/file/71393628/BIOS255-Week-2-Cardiovascular-Heartdocx/
, You will then work through the material and activities by scrolling down on the right. This will
allow you to see and work through all activities for that section.
Part 2: Complete the Lab report.
Heart Lab report
1. Purpose:
Please state the purpose of the lab.
The purpose of this lab is to get a better understanding on cardiovascular
functioning.
2. Procedure:
Briefly discuss the procedure for this lab and experiment.
The procedure for this lab consist of learning heart rates, blood flow and
blood pressure.
What measurements did you obtain from the test subjects?
3. Data and Details:
HR at rest HR max SV at rest SV max CO at rest CO max
exercise exercise exercise
Subject A
This study source was downloaded by 100000845689434 from CourseHero.com on 05-12-2022 09:34:43 GMT -05:00
https://www.coursehero.com/file/71393628/BIOS255-Week-2-Cardiovascular-Heartdocx/
