Lesson · A.4.2

The respiratory system

The HESI A2 tests the respiratory tract from nose to alveolus, plus the mechanics of breathing. Here is the structure, the gas exchange, and the control loop in one pass.

ObjectiveA.4.2Read5 minExam weightCirculation, Respiration and Maintenance ≈ 28% of Anatomy & Physiology

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What this lesson covers

The HESI A2 tests the respiratory tract from nose to alveolus, plus the mechanics of breathing. Here is the structure, the gas exchange, and the control loop in one pass.