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Frage 57

The chest must protect vital organs without becoming rigid during breathing. Which skeletal structure meets both needs?

  1. The rib cage, which protects organs while permitting chest movementRichtige Antwort
  2. The skull, which expands during every breath
  3. The limb girdles, which enclose both lungs
  4. The rib cage, which prevents all chest movement

Erklärung

The rib cage shields the heart and lungs while its joints and attachments still permit breathing movements. A completely immovable chest would conflict with ventilation, so preventing all movement is not its function.

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Frage 57: The chest must protect vital organs without becoming rigid… · Human Body Systems · Questena