Medicine: Lung: Bronchial cells
A fracture through the tissue of the ciliated cells of the human lung is shown (Tunica mucosa). These ciliated epithelia line the whole bronchi of the lung. In rhythmic motion the ciliaea of these cells transport inhaled dirt particles, together with separated mucus, from the lung in the direction of the trachea.
Scanning electron microscope, magnification 20 000:1
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© Oliver Meckes