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The circulatory system — Biology STD 10 — Question

ICSE BoardEnglish MediumSTD 10BiologyThe circulatory system1 Mark
MCQ
Arteries are:
  • A
    thin walled and blood flows under diminished pressure
  • ✓
    thick walled and blood flows under high pressure
  • C
    thin walled and blood flows under low pressure
  • D
    thick walled and blood flows under diminished pressure
✓

Answer

Correct option: B.
thick walled and blood flows under high pressure
(b) thick walled and blood flows under high pressure
Explanation:
Arteries have thicker walls because they need to withstand the high pressure of blood being pumped directly from the heart.

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