Trachea, light micrograph. Ciliated pseudostratified columnar epithelium of the trachea (respiratory epithelium). Goblet cells, located among ciliated epithelial cells, have their mucus stained pink by the periodic acid–Schiff (PAS) stain.

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Photo credit: © JOSE CALVO / SCIENCE PHOTO LIBRARY / Alamy / Afripics
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Keywords: -, acid–schiff, anatomical, anatomy, biological, biology, cell, cells, ciliated, cilium, columnar, epithelium, goblet, healthy, histological, histology, light, lm, micrograph, microscope, microscopy, normal, pas, periodic, pseudostratified, trachea