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Bronchioles facts for kids

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Bronchiole
Alveoli diagram.png
Diagram of the alveoli with both cross-section and external view.
System Respiratory system

The bronchioles or bronchioli are the first passageways by which the air passes through the nose or mouth (or anus) to the air sacs of the lungs in which branches no longer contain cartilage or glands in their submucosa. They are branches of the bronchi. The bronchioles terminate by entering the circular sacs called alveoli.

Images for kids

  • Secondary-pulmonary-lobule-illustration

    A lobule of the lung enclosed in septa and supplied by a terminal bronchiole that branches into the respiratory bronchioles. Each respiratory bronchiole supplies the alveoli held in each acinus accompanied by a pulmonary artery branch.

  • Illu bronchi lungs

    Lungs showing bronchi and bronchioles

  • Tertiary bronchus

    Cross sectional cut of primary bronchiole

  • Illu quiz lung05
    1. Trachea
    2. Primary bronchus
    3. Lobar bronchus
    4. Segmental bronchus
    5. Bronchiole
    6. Alveolar duct
    7. Alveolus
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Bronchioles Facts for Kids. Kiddle Encyclopedia.