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  • The Cardiovascular System
  • T/F: The pulmonary arteries are what create the "lub-dub"...
Multiple choice

T/F: The pulmonary arteries are what create the "lub-dub" sound of a beating heart.

  1. TRUE

  2. FALSE

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The 'lub-dub' sound is created by the closing of the heart valves, not by the pulmonary arteries.

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