Practice identifying the main parts and functions of the cardiovascular system, including the heart, blood, and blood vessels.
Read each problem carefully. Write complete answers and use science vocabulary when possible.
How the heart, blood, and blood vessels work together
Health - Grade 6-8
- 1
Explain the main job of the cardiovascular system.
- 2
Name the three main parts of the cardiovascular system and describe the job of each part.
- 3
The heart has four chambers. Identify the two upper chambers and the two lower chambers.
- 4
Describe the path blood takes from the body to the lungs and back to the body.
- 5
Compare arteries, veins, and capillaries.
- 6
Why is the left ventricle usually more muscular than the right ventricle?
- 7
List the four main components of blood and give one function of each.
- 8
A student says, "All blood in veins is low in oxygen." Explain why this statement is not always correct.
- 9
Explain what happens to heart rate during exercise and why.
- 10
What is blood pressure, and why is a healthy blood pressure important?
- 11
Describe how valves help the heart move blood correctly.
- 12
Identify two healthy habits that support the cardiovascular system and explain how each habit helps.