Genetics – GCSE Edexcel Biology
Used by 3 teachers
The Heart, Blood Vessels and Blood, and the Lungs: Coronary Heart Disease and Its Treatments
01
Part 1: The Heart
A muscular organ with four chambers — two pumps side by side. Blood leaves via arteries to the lungs and body, returning via veins: double circulation keeps oxygenated and deoxygenated blood separate.
CIRCULATORY SYSTEM
The Double Circulatory System
Blood travels through the heart twice in one complete circuit, using two separate loops. The pulmonary loop carries blood to the lungs, and the systemic loop carries it around the body.
Example
A red blood cell leaving the right ventricle reaches the lungs, returns to the left atrium, then is pumped to the body before returning — passing through the heart twice in one full circuit.
Slide 4 The Five Vessels of the Heart
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Slide 5 Check Your Understanding: Circulation
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Slide 6 Check Your Understanding: Circulation
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Slide 7
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Slide 8 Explain the Double Circulatory System
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Slide 9
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Slide 10 Arteries, Veins and Capillaries
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Slide 11 Functions of Blood Components
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Slide 12 Calculating Rate of Blood Flow
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Slide 13 Coronary Heart Disease
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Slide 14
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What’s in this lesson
- 1 Slide 1 Free to read
- 2 Slide 2 Free to read
- 3 Inside the Heart: Four Chambers Free to read
- 4 The Five Vessels of the Heart
- 5 Check Your Understanding: Circulation
- 6 Check Your Understanding: Circulation
- 7 Slide 7
- 8 Explain the Double Circulatory System
- 9 Slide 9
- 10 Arteries, Veins and Capillaries
- 11 Functions of Blood Components
- 12 Calculating Rate of Blood Flow
- 13 Coronary Heart Disease
- 14 Slide 14
Where this lesson came from
Drafted with BA Productivity’s AI lesson generator, then edited and published by Isabella Lassman. They confirmed they checked every slide and that it is theirs to share.
Always read a lesson through before you teach it.
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