Biology · Circulatory System

Which of the following correctly explains why veins have valves whereas arteries do not?

Verified Solution4 OptionsUpdated: October 2026👁️1 View

1Veins carry blood at high pressure, so valves protect them from bursting.
2Arteries carry oxygenated blood and do not require valves.
3Arteries are located deep within the body and are supported by muscles.
4Veins carry blood at low pressure and require valves to prevent blood from flowing backward.✓

Correct answer

Veins carry blood at low pressure and require valves to prevent blood from flowing backward.

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