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Follow blood through the heart and lungs

7th grade (Year 8 in England) · 11 questions · Common Core: NGSS.MS-LS1-3 · England: KS3 Biology: Gas exchange systems, GCSE Combined Science: Organisation

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  1. Question 1

    What is the job of the valves in the heart?

    • A. to slow the heartbeat
    • B. to stop blood flowing backwards
    • C. to make blood cells
    • D. to add oxygen to blood

  2. Question 2

    Following blood from the body to the lungs: where does blood go straight after the vena cava?

    • A. pulmonary artery
    • B. right atrium
    • C. right ventricle
    • D. lungs

  3. Question 3

    What is the job of the valves in the heart?

    • A. to slow the heartbeat
    • B. to add oxygen to blood
    • C. to make blood cells
    • D. to stop blood flowing backwards

  4. Question 4

    Following blood from the lungs to the body: where does blood go straight after the left atrium?

    • A. pulmonary vein
    • B. lungs
    • C. left ventricle
    • D. aorta

  5. Question 5

    Why is the wall of the left ventricle thicker than the right?

    • A. It holds more blood
    • B. It pumps blood to the lungs only
    • C. It pumps blood all round the body, so it needs more force
    • D. It is older

  6. Question 6

    Following blood from the body to the lungs: where does blood go straight after the right atrium?

    • A. vena cava
    • B. pulmonary artery
    • C. right ventricle
    • D. lungs

  7. Question 7

    Which blood vessel carries oxygen-rich blood from the lungs to the heart?

    • A. pulmonary vein
    • B. vena cava
    • C. pulmonary artery
    • D. aorta

  8. Question 8

    Following blood from the lungs to the body: where does blood go straight after the left ventricle?

    • A. left atrium
    • B. aorta
    • C. pulmonary vein
    • D. lungs

  9. Question 9

    Humans have a double circulatory system. What does that mean?

    • A. only half the blood reaches the lungs
    • B. blood flows both ways in each vessel
    • C. we have two hearts
    • D. blood passes through the heart twice on each full trip round the body

  10. Question 10

    Following blood from the lungs to the body: where does blood go straight after the lungs?

    • A. left ventricle
    • B. left atrium
    • C. aorta
    • D. pulmonary vein

  11. Question 11

    Why is the wall of the left ventricle thicker than the right?

    • A. It pumps blood to the lungs only
    • B. It holds more blood
    • C. It is older
    • D. It pumps blood all round the body, so it needs more force

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Answer key: Follow blood through the heart and lungs

  1. 1. B. to stop blood flowing backwards

  2. 2. B. right atrium

  3. 3. D. to stop blood flowing backwards

  4. 4. C. left ventricle

  5. 5. C. It pumps blood all round the body, so it needs more force

  6. 6. C. right ventricle

  7. 7. A. pulmonary vein

  8. 8. B. aorta

  9. 9. D. blood passes through the heart twice on each full trip round the body

  10. 10. D. pulmonary vein

  11. 11. D. It pumps blood all round the body, so it needs more force