Nasopharynx epithelial cells with microvilli, SEM

Bildnummer 12377396
Nasopharynx epithelial cells with microvilli, SEM
Nasopharynx surface, scanning electron micrograph (SEM). Shown hear are microvilli on the surface of a group of squamous nasal epithelial cells. The nasopharynx (nasal part of the pharynx) lies behind the nose and above the level of the soft palate. Stratified squamous nasal epithelial cells line the surface of the nasopharynx. The epithelial cell surfaces are covered with tiny microvilli that increase the cell surface area. The microvilli likely aid in localization of foreign debris (coming from the nose) and detection by immune cells. Mucus, secreted by cells in the epithelial lining (not seen), traps foreign objects, such as bacteria, preventing them from entering the lungs. Other sensory cells and features (not seen) also occur in the nasal epithelial layer. Magnification: x2, 000 when shortest axis printed at 25 millimetres.
Lizenzart: Lizenzpflichtig
Credit: Science Photo Library / DENNIS KUNKEL MICROSCOPY
Bildgröße: 2726 px × 3206 px
Modell-Rechte: nicht erforderlich
Eigentums-Rechte: nicht erforderlich
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