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Lung cilia80295-50
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Lung cilia#80295-50

March 25, 2013
Transmission electron microscope image of a thin section cut through the bronchiolar area of lung(mouse), showing cilia cross-sections. The inside of the cilium contain precisely arranged microtubles, the axoneme. The axoneme has a central unit containing two single microtubules and nine peripheral doublet microtubules (known as the "9+2"). Dynein sidearms project from the A tubule of each doublet. JEOL 100CX TEM Credit: Louisa Howard, Michael Binder