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Lung alveoli, artery, and bronchiole, 25x
Cavia porcellus
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Photographer: Sarah Werning
ID: 0000 0000 0707 1491 (2007-07-27)Copyright © 2007 Sarah Werning
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INFORMATION PROVIDED WITH THE PHOTO
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date of photo Jul 9, 2007
notes Thin section of alveoli of the lung showing an artery and bronchiole, Mallory-Azan stain. Taken at 25x. IB 131L slide #31. The alveoli are lined with simple squamous epithelium. The alveoli are small sacs or hollow balls of simple squamous epithelium. In this image, the artery is on the left and the bronchiole is on the right. In the artery, the thicker tunica media is stained pink and the thinner tunica externa is stained blue. A faint spread of erythrocytes (red blood cells) can be seen across the lumen. Note the circular shape of the artery. The bronchiole is lined with simple columnar epithelium (note large nuclei all at the same level). No cartilage plates surround this bronchiole. Cilia may or may not be present but cannot be seen at this magnification. No goblet cells are visible. Given that the lining is columnar epithlium and not cuboidal, this is probably a terminal bronchiole, not an alveolar bronchiole. It is definitely not a bronchus; bronchi are lined with true respiratory epithelium (pseudostratified columnar epithelium with cilia and goblet cells) and have irregular or C-shaped cartilage surrounding them.camera Nikon D70, original resolution: 300dpi, 3008x2000pxls at 25x magnification
photo category: Misc. - histology
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Slide #31 - Lung, Alveoli, Bronchiole, Artery, 25x
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Using this photo The thumbnail photo (128x192 pixels) on this page may be freely used for personal or academic purposes without prior permission under the Fair Use provisions of US copyright law as long as the photo is clearly credited with © 2007 Sarah Werning.
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