Unit 3.3

Question 1) What are the three blood vessels in your body?

Question 2) What do arteries do?

Question 3) What happens if an artery is cut?

Question 4) What is your pulse?

Question 5) Which is the finest of the blood cells?

Question 6) Why are capillaries only one cell thick?

Question 7) What do capillaries when joined form?

Question 8) What do veins do?

Question 9) How is blood pushed back to the heart?

Question 10) When do valves open?

Question 11) When does a thrombus from?

Question 12) What are bruises

Question 14) How big is your heart?

Question 15) What is angina?