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Blood Vessels Worksheet

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Blood Vessels Worksheet

Blood Vessels Worksheet

Blood vessels diagram showing arteries, veins and capillaries

🩸 Part 1: Multiple Choice Questions

1. Which blood vessels carry blood away from the heart?

Arteries

Veins

Capillaries

Lymph vessels

2. Which blood vessels have the thickest walls?

Arteries

Veins

Capillaries

All are the same thickness

3. Where does gas exchange occur in the circulatory system?

Arteries

Veins

Capillaries

Heart chambers

4. Which blood vessels contain valves to prevent backflow?

Arteries only

Veins only

Capillaries only

Both arteries and veins

✅ Part 2: True or False

5. Check all the TRUE statements about blood vessels:

Arteries carry oxygenated blood (except pulmonary artery)

Veins have thicker walls than arteries

Capillaries are only one cell thick

Blood pressure is highest in the capillaries

Veins carry blood back to the heart

Arteries have a pulse you can feel

📝 Part 3: Fill in the Blanks

6. Complete the sentences about blood vessels:

a) _____________ carry blood away from the heart and have _______ walls to withstand high pressure.

b) _____________ return blood to the heart and contain _______ to prevent backflow of blood.

c) _____________ are the smallest blood vessels where _______ exchange occurs between blood and tissues.

d) The largest artery in the body is called the _____________.

e) Blood vessels that supply the heart muscle itself are called _____________ arteries.

🔗 Part 4: Matching Activity

7. Match each blood vessel type with its characteristics:
1. Arteries
2. Veins
3. Capillaries
4. Arterioles
5. Venules
A. Microscopic vessels one cell thick
B. Small vessels that collect blood from capillaries
C. Thick-walled vessels carrying blood from heart
D. Small branches of arteries that regulate blood flow
E. Thin-walled vessels with valves returning blood to heart

🎨 Part 5: Drawing and Labelling

8. Draw a simple diagram showing the path of blood through different types of blood vessels, starting and ending at the heart:
9. Draw and label a cross-section of an artery and a vein, showing the differences in their wall structure:

💭 Part 6: Short Answer Questions

10. Explain why arteries need thicker walls than veins:
11. Describe the function of capillaries and explain why they need to be so thin:
12. Compare and contrast arteries and veins (give at least 3 differences):

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