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Home > All Images > 2002 > May > 30 May 2002

Images Dated 30th May 2002

Choose from 8 pictures in our Images Dated 30th May 2002 collection for your Wall Art or Photo Gift. All professionally made for Quick Shipping.

Artwork of the respiratory system of an asthmatic Featured 30 May 2002 Image

Artwork of the respiratory system of an asthmatic

Asthma. Cut-away illustration of the respiratory system showing the effects of asthma. The trachea (windpipe) is at top and the alveoli, air sacs (white), are at bottom. At upper right the cut- away bronchioles reveal their excessive sputum, or phlegm (green). In asthma, a trigger, such as an allergen, causes bronchiole narrowing, resulting in inflammation and shortness of breath. In response, mucus-producing goblet cells (one seen magnified at upper centre) produce too much sputum. This coats the tentacle-like cilia of the bronchiole lining (epithelium). Alternatively the artwork may represent bronchitis, where infection or irritation cause inflammation directly