Start Key Terms: Anatomy & Physiology: The Respiratory System

Question: acute mountain sickness

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(AMS) condition that occurs a result of acute exposure to high altitude due to a low partial pressure of oxygen

Question: alveolar dead space

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air space within alveoli that are unable to participate in gas exchange

Question: anatomical dead space

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air space present in the airway that never reaches the alveoli and therefore never participates in gas exchange

Question: alveolar sac

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cluster of alveoli

Question: alveolar pore

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opening that allows airflow between neighboring alveoli

Question: alveolar duct

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small tube that leads from the terminal bronchiole to the respiratory bronchiole and is the point of attachment for alveoli

Question: alar cartilage

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cartilage that supports the apex of the nose and helps shape the nares; it is connected to the septal cartilage and connective tissue of the alae

Question: ala

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(plural: alae) small, flaring structure of a nostril that forms the lateral side of the nares

Question: alveolar macrophage

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immune system cell of the alveolus that removes debris and pathogens

Question: acclimatization

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process of adjustment that the respiratory system makes due to chronic exposure to high altitudes

Question: alveolus

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small, grape-like sac that performs gas exchange in the lungs