Last Updated：2025/11/23

(anatomy) The part of the respiratory tract consisting of trachea, bronchi, bronchioles and alveoli.

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lower respiratory tract

Source Word

lower respiratory tract

(anatomy) The part of the respiratory tract consisting of trachea, bronchi, bronchioles and alveoli.

Japanese Meaning

下気道（気管、気管支、細気管支、肺胞からなる呼吸器官の下部）

Infections of the lower respiratory tract can lead to serious complications in elderly patients.

下気道の感染症は高齢者に深刻な合併症を引き起こすことがある。

Sense（1）

(anatomy) The part of the respiratory tract consisting of trachea, bronchi, bronchioles and alveoli.

lower respiratory tracts

（ plural ）