Tag Archives: Bronchiole

Lung SEM

Alveoli and a terminal bronchiole can be seen in this scanning electron micrograph

Image source (link). Lung SEM low magnification. Image from Univ Delaware

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Tertiary bronchi

The tertiary bronchi (also known as the segmental bronchi) arise from the secondary bronchi. The respiratory epithelium lining their lumen is surrounded by a layer of smooth muscle. This layer is composed of two ribbons of smooth muscle that spiral in opposite directions. The smooth muscle layer is surrounded by irregular plates of hyaline cartilage which help maintain the patency of the airway. (from wikipedia)

Virtual Microscopy U Mich (link)

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Bronchiole – confocal microscopy

The bronchiolar epithelium is made up of ciliated columnar cells in larger bronchioles, or non-ciliated in smaller bronchioles. Continue reading »

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Bronchiole

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

Virtual Microscopy

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