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2 marksThe Circulatory and Lymphatic Systems

CSEC Human and Social Biology · May/June 2015 · Paper 2 · Question 4(a)

Heart action and cardiovascular disorders.

Complete the sentences by selecting the correct terms from the list provided (blood pressure, systole, ventricles, atria, diastole) to describe chamber contraction and relaxation.

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Other parts of this question

  1. 4(b)(i)Name the medical condition characterized by the hardening of arterial walls due to plaque build-up, and state ONE symptom.[2 marks]
  2. 4(b)(ii)State TWO risk factors that contribute to the development of hypertension.[2 marks]
  3. 4(c)Briefly describe the physiological effects that clogged arteries supplying the brain would have on the brain and the individual.[4 marks]
  4. 4(d)(i)Using Figure 3, identify which individual is most likely suffering from diabetes mellitus and explain your choice.[3 marks]
  5. 4(d)(ii)Explain ONE way in which genetic engineering has aided in the medical management and treatment of diabetes mellitus.[2 marks]

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