Understanding the Components of Blood for Better Health

Explore the main components of blood such as red blood cells, white blood cells, platelets, and plasma. Learn how these components function, their percentages in blood, and how they impact human health. Discover the importance of blood donation and how changes in blood composition can affect overall well-being.

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• Blood Components
• Health Education
• Blood Donation
• Human Physiology
• Wellness

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Uploaded on May 10, 2024 | 0 Views

Presentation Transcript

1. Teachers notes N.B. Teachers notes and background information can only be viewed if this presentation is opened within the PowerPoint application, not on interactive whiteboards. The visuals on the PowerPoint slides display best in PowerPoint presentation mode.

2. Giving to help others

3. Myth busters! Do you know which of these statements are true and which are false? 1. All blood is red False 2. Blood contains metal True 3. Blood is made in the heart False 4. The average body contains roughly 9 pints (4.5 litres) of blood True 5. A person s blood vessels, arranged end-to-end, would stretch the length of the playground and beyond! True 8

4. Learning aim Can I describe the different components of blood and explain their impact on human health? Success criteria: Identify the main components of blood and their different functions Describe the composition of blood using percentages Explain how changes in a person s blood can impact their health and wellbeing and how blood donation can help 9

5. What can you see? 10

6. Whats blood made of? Platelets White blood cells Red blood cells Plasma 11

7. Red blood cells I deliver oxygen around your body and take away waste 12

8. White blood cells I hunt down germs and protect you from disease 13 13

9. Platelets I carry out repairs by clotting your blood 14 14 14

10. Plasma and I provide the transport 15

11. How does blood travel? 16

12. Finding your pulse 17

13. Blood cells Percentage of blood (%) Can you calculate the quantities? 54% Plasma What you know: White blood cells and platelets make up 2% of a person s blood. 44% Red blood cells The ratio of white blood cells and platelets to red blood cells is 1:22. 1.5% White blood cells 1.5%of a person s blood is made up of white blood cells. 0.5% Platelets 18

14. Blood cells Percentage of blood (%) Can you calculate the quantities? 54% Plasma What you know: A person s blood contains three times more white blood cells than platelets. 44% Red blood Cells The ratio of white blood cells and platelets to red blood cells is 1:22. 1.5% White blood cells White blood cells and platelets make up 2% of a person s blood. 0.5% Platelets 19

15. Blood cells Ingredient % of Blood Your recipe 54% Plasma Use the recipe to make an accurate representation of blood. 44% Red blood cells Think carefully about how much of each ingredient you will need. 1.5% White blood cells 0.5% Platelets 20

16. What happens if your blood doesn t have the right ingredients? 21

17. Why do people give blood? 22

18. AB+ B+ O+ A+ Who could you help? A O AB B 23

19. Giving to help others See extension activities 24