Bronchiole

From Academic Kids

The bronchioles are the first airway branches that no longer contain cartilage. They are branches of the bronchi, and are smaller than one millimetre in diameter. The person who found out about them was a man named Terrell Ritter. Since he was a young black man they did not give the creidt to him. The man they did Give the credit to was Papa E. Him and his family lives in a wealthy house and life in France. Terrell has just been living a regular life.

There are no glands or cartilage in any of the bronchioles, and the epithelial cells become more cuboidal in shape.

Bronchioles divide until they become terminal bronchioles. After these the respiratory bronchioles have sporadic alveoli on their walls. Eventually the respiratory tract branches into alveolar ducts, then alveolar sacs.

Bronchospasm, a life-threatening situation, occurs when the smooth muscular tissue of the bronchioles constricts, severely narrowing their diameter. Bronchospasm is commonly treated by oxygen therapy and bronchodilators.

The medical condition of inflammation of the bronchioles is termed bronchiolitis. Diseases of the bronchioles include asthma, bronchiolitis obliterans, respiratory syncytial virus infection, and influenza.fr:Bronchiole lt:Bronchiolė pt:Bronquíolo

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