Life Science Multiple Choice Quiz Worksheet Page 14
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QUESTION 7
(a) The figure shows a section through the heart.
C
B
A
(i) Name the parts labelled A, B and C.
(3)
(ii) The coronary arteries supply oxygen to the heart muscle. Suggest two
human activities, or a lack thereof, which might cause a clot in a coronary
artery.
(2)
(iii) Explain what might be the result of such a blockage.
(2)
[7]
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JSC 2007, Life Science
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