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Description
Flashcards by Zubayr C-137 Rashid, updated more than 1 year ago
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Created by Zubayr C-137 Rashid
over 7 years ago
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| Question | Answer |
| Unit 3.3 | Circulatory System |
| Question 1) What are the three blood vessels in your body? | - Arteries -Capillaries -Veins |
| Question 2) What do arteries do? | They carry blood away from the heart. |
| Question 3) What happens if an artery is cut? | Then the high pressure within it causes blood to spurt out very quickly. |
| Question 4) What is your pulse? | The regular expansion and contraction of the arteries in response to the heartbeat can be felt. |
| Question 5) Which is the finest of the blood cells? | Capillaries |
| Question 6) Why are capillaries only one cell thick? | So this allows dissolved materials to pass through them |
| Question 7) What do capillaries when joined form? | Larger blood vessels called veins. |
| Question 8) What do veins do? | Veins carry blood back to the heart. |
| Question 9) How is blood pushed back to the heart? | By the contraction of the muscles pressing against the veins. |
| Question 10) When do valves open? | When blood is flowing towards the heart and close if the blood flows away from it. |
| Question 11) When does a thrombus from? | When blood thickens and forms a dangerous blood |
| Question 12) What are bruises | When you bump yourself hard, some of the tiny capillaries near the skin burst and the blood leaks out the surrounding tissue. |
| Question 14) How big is your heart? | About the size of your fist. |
| Question 15) What is angina? | A lack of oxygen to the heart muscle causes angina. |
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