noun ダウンロード 🔗共有 細気管支 Any of the small cartilage-less branches of a bronchus. Examples : "The doctor explained that the patient's breathing difficulties were caused by inflammation in the bronchioles. " 医者は、患者の呼吸困難は細気管支の炎症が原因だと説明した。 anatomy organ body medicine physiology AIとチャット語彙ゲーム読解練習