1. Life Science Unit Overview: Chapter 1 – Structure of Living Things
Lesson 1 – Cells
Lesson 2 – From Cells to Organisms
Lesson 3 – Diversity of Organisms
Chapter 2 – Plant Structures and Functions
Lesson 1 – Vascular Plants
Lesson 2 – Plant Transport Systems
Lesson 3 – Photosynthesis and Respiration
Chapter 3 – Human Body Systems
Lesson 1 – The Human Body
Lesson 2 – The Digestive System
Lesson 3 The Respiratory System
Lesson 4 – The Circulatory System
Lesson 5 – The Excretory System

2. The Circulatory System
Lesson Overview:
1) What do we already know? (The Heart)
2) Vocabulary
3) Drawings
4) Main Ideas
5) Review
Human Body Systems: Lesson 4

3. The Circulatory System: What do we already know? BrainPOP Teaser
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The Circulatory System: What do we already know? BrainPOP Teaser
How do the diaphragm and lungs work together?
a) The diaphragm helps us inhale and exhale air into and out of the lungs.
Where does gas exchange take place?
a) In the alveoli
3) Food Chain
Human Body Systems: Lesson 4

4. The Circulatory System: Vocabulary Part I
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The Circulatory System: Vocabulary Part I
1) heart: an organ that constantly pumps blood throughout the body.
2) artery: carries blood mixed with oxygen (oxygen rich blood) AWAY from the heart.
3) vein: carries blood mixed with carbon dioxide (oxygen poor blood) BACK to the heart.
4) capillary: smallest blood vessel with very thin walls.
Human Body Systems: Lesson 4

5. The Circulatory System: Drawings (pg. 145)
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Human Body Systems: Lesson 4

6. The Circulatory System: Drawings (pg. 147)
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The Circulatory System: Drawings (pg. 147)
You will need to be able to label this on the test.
Human Body Systems: Lesson 4

7. The Circulatory System: Drawings (pg. 150)
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Human Body Systems: Lesson 4

8. The Circulatory System: Main Ideas
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The Circulatory System: Main Ideas
How are materials transported through your body? (pg )
a) – First, blood from your heart is pumped into your lungs via arteries. Arteries carry blood rich oxygen and nutrients from your digestive system to your organs, cells and tissues. The blood then returns to the heart via veins carrying carbon dioxide and other waste.
Quick Check (pg. 145)
-Critical Thinking: Why does your body need
a circulatory system?
a) It is needed to transport food, oxygen and nutrients to all cells, tissues and organs in the body. It also carries away waste.
Human Body Systems: Lesson 4

9. The Circulatory System: Main Ideas
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The Circulatory System: Main Ideas
2) What are the parts of the heart? (pg )
a) aorta, right atrium, left atrium, heart valves, right ventricle and left ventricle.
Quick Check (pg. 147)
-Critical Thinking: What do you think happens to
a person when the heart valves are not
working?
a) Blood could flow the wrong direction causing serious health concerns.
Human Body Systems: Lesson 4

10. The Circulatory System: Main Ideas
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The Circulatory System: Main Ideas
3) How do blood and blood vessels
work? (pg )
a) Blood absorbs and transports oxygen, nutrients, waste and carbon dioxide through out the body. Blood vessels are the muscular tubes that blood travel through.
Quick Check (pg. 149)
-Critical Thinking: Why are there more red blood cells
that white blood cells?
a) red blood cells transport oxygen and nutrients, therefore there needs to be more of them. White blood cells are only a defense system that fights off infections and germs.
Human Body Systems: Lesson 4

11. The Circulatory System: Review
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The Circulatory System: Review
Summarize the main ideas
Click to Watch!
Think, Talk, and Write
Human Body Systems: Lesson 4