SEM of trachea surface with pollen & dust

SEM of trachea surface with pollen & dust

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Credit: EDDY GRAY/SCIENCE PHOTO LIBRARY

Caption: Trachea covered in allergens. Coloured scanning electron micrograph of the surface of the trachea (windpipe) with breathed in pollen (orange) and dust (brown). These airborne particles may cause asthma or hay fever (allergic rhinitis). The surface of the trachea is made up of cells with hair-like cilia (green). Together with mucus, these cilia serve to trap airborne particles and by beating upwards in a wave-like motion they remove foreign matter from the air tubes and lungs. In asthmatic or allergic patients, such particles may lead to a hyper- sensitive reaction causing breathing difficulties. Magnification: x600 at 6x7cm size. x2,000 at 10x8"

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Keywords: allergen trachea, allergens, allergic, allergy, asthma, cilia, condition, disorder, dust, hay fever, hayfever, healthcare, household, medical, medicine, pollen, throat

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