Respiratory adaptations · Physiology

The most important respiratory adaptation that improves survival at high altitude is:

  1. Increased lung compliance
  2. Increased ventilation
  3. Decreased oxygen consumption
  4. Reduced pulmonary blood flow
Show answer and explanation

Correct answer: Increased ventilation

Increased ventilation is the earliest and most critical response to hypoxia. It raises alveolar and arterial oxygen levels.

Difficulty: Medium Question 20 of 20

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