Question 1:
Diagram 4.2(a) shows a healthy coronary artery.
Diagram 4.2(b) shows the coronary artery of a person with cardiovascular
disease. The coronary arteries supply blood to heart muscles.
Rajah 4.2(a) menunjukkan satu arteri koronari yang sihat.
Rajah 4.2(b) menunjukkan arteri koronari seorang pesakit kardiovaskular.
Arteri koronari membekalkan darah ke otot-otot jantung.
(i) Name deposit X.
Namakan enapan X.
(ii) Explain how the deposit X and thrombus lead to cardiovascular disease.
Terangkan bagaimana enapan X dan trombus mengakibatkan penyakit
kardiovaskular
(iii) Suggest two ways to maintain a healthy heart.
Cadangkan dua cara mengekalkan kesihatan jantung.
SUGGESTED ANSWER:
(i) Able to name deposit X.
Answer:
Cholesterols / fats / calcium
(ii)Able to explain how deposit X and thrombus lead to cardiovascular
disease.
Sample answers:
-(Lumen of) arteries are narrowed / blocked.
- No / less oxygen / nutrients supplied to the heart (tissues) // No /
less energy produced (by respiration).
Any 1
-Heart tissues damage / died
-Heart stop beating // (Causing) angina / heart attack.
(iii)Able to suggest two ways to maintain a healthy heart.
Sample answers:
-Taking food low in cholesterols / (saturated) fats // Balance diet.
-Practice a healthy lifestyle / (regular) exercise / reduce stress.
Courtesy from SBP TRIAL 2010
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