Lung alveoli are the ends of the respiratory tree, branching from either alveolar sacs or alveolar ducts. Alveoli the basic unit of ventilation which is small sacs found in the lung parenchyma. The sacs are 0.5 mm in diameter and the cells are made of simple squamous epithelium. The alveoli are a major site for exchange of gases with the blood.

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Chapter 22, Problem 13TYR

Summary Introduction

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Lung alveoli are the ends of the respiratory tree, branching from either alveolar sacs or alveolar ducts. Alveoli the basic unit of ventilation which is small sacs found in the lung parenchyma. The sacs are 0.5 mm in diameter and the cells are made of simple squamous epithelium. The alveoli are a major site for exchange of gases with the blood.

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