Download Circulatory System - Apex Middle School

Science 7
The Circulatory System
Notes
Essential Questions
1. What is the function of the circulatory system?
2. What is the structure and function of the major parts
of the circulatory system?
3. How does blood travel through the heart and lungs
as oxygen and carbon dioxide exchange occurs?
Vocabulary
heart, artery, vein, capillary, red
blood cells, white blood cells,
platelets, plasma
Name __________________________
Date ___________________________
Objectives
1. Identify the major structures of the
circulatory system.
2. Identify the function of the circulatory
system.
1. What is the primary function of the circulatory system?
2. What is another name for the circulatory system? What do the words “cardio” and “vascular” mean?
3. Describe the structure and function of the following parts of the circulatory system.
a. Heart –
b. Artery—
c. Vein—
d. Capillary –
4. Describe the 4 parts of blood (include %, shape, color, lifespan, and purpose):
%
Shape
Color
Lifespan
Purpose
Red
Blood
Cells
White
Blood
Cells
Plasma
Platelets
5. Explain the flow of blood through your heart and lungs, beginning with oxygen-poor blood entering the heart. Include
and underline the parts of the heart in your description.
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6. Explain the role of veins, arteries, and capillaries and how they work together to move blood through the body.
7. Explain the effects of high blood pressure and cholesterol on the circulatory system.
8. Describe the effects of following diseases on the circulatory system:
a. Sickle cell anemia (genetic disorder) b. Heart disease (environmental factors) -
9. Color oxygenated blood RED.
Color deoxygenated blood BLUE.
Label blood flow as “to body”, “from
body”, “to lungs” or “from lungs”.
Oxygenated blood travels from the heart to the _________.
Deoxygenated blood travels from the heart to the __________.
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10. Label the following parts of the heart: superior vena cava, inferior vena cava, right atrium, right ventricle,
left atrium, left ventricle, left pulmonary artery, left pulmonary vein, aorta, aortic valve, mitral valve,
pulmonary valve, tricuspid valve.
11. Color the diagram and draw arrows demonstrating the flow of blood through the heart.
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