NEET Biology ยท Hard

Body Fluids and Circulation: Mixed logic MCQ

Solve this quality-checked NEET multiple-choice question, then review the correct answer and explanation.

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Mixed logicHardQuestion 9699

Question

Which statement is correct?

  1. A
    Arteries and veins are defined by direction of blood flow relative to heart
    Correct
  2. B
    All arteries always contain oxygenated blood
  3. C
    All veins always contain deoxygenated blood
  4. D
    Capillaries never take part in exchange

Correct answer

Arteries and veins are defined by direction of blood flow relative to heart

Explanation

Pulmonary vessels are exceptions to the oxygenation rule, so direction is the defining criterion.