SEM of tracheal epithelium

SEM of tracheal epithelium

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This image is part of the feature Landscapes Of The Human Body

Credit: PROF. P. MOTTA/DEPT. OF ANATOMY/UNIVERSITY

Caption: Tracheal epithelium: scanning electron micrograph (SEM) of the ciliated epithelium lining the trachea, the windpipe. Here, the cilia appear as worm-like threads, hiding the underlying cell surface; interspersed are goblet cells (left, blue) which secrete a viscous mucous. The tracheal epithelium is adapted for cleaning and warming air entering the lungs. The mucous serves to trap particles of dirt, whilst the coherent beat of the cilia propels such matter against the airflow back towards the pharynx to be expelled through the mouth & nose. Magnification: x3840 at 6x7cm size.

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Keywords: anatomy, ciliated cell, epithelium, goblet cell, human body, images, magnified image, microscopic photos, respiratory system, scanning electron micrograph, sem, subjects, trachea, windpipe

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