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HMS, BM EQ-Bank 875 MC

Which of the following best describes the primary cause of vascular disease that impacts the cardiovascular system's efficiency?

  1. Low haemoglobin levels in the blood
  2. Atherosclerosis (build-up of plaque on artery walls)
  3. Decreased oxygen partial pressure at high altitude
  4. Iron deficiency in red blood cells
Show Answers Only

\(B\)

Show Worked Solution
  • B is correct. Atherosclerosis is the primary cause of vascular disease that impacts cardiovascular efficiency by narrowing arteries and reducing blood flow.

Other Options:

  • A is incorrect: Low haemoglobin is a separate factor affecting cardiovascular efficiency
  • C is incorrect: This describes altitude effects, not vascular disease
  • D is incorrect: Iron deficiency causes anaemia, not vascular disease directly