Ciliated nasal epithelial cell, SEM

Numéro d’image : 12298106
Ciliated nasal epithelial cell, SEM
Nasopharynx surface, coloured scanning electron micrograph (SEM). Seen here are: a ciliated nasal epithelial cell surrounded by other squamous nasal epithelial cells. The nasopharynx lies behind the nose and above the level of the soft palate. Ciliated nasal epithelial cells occur throughout the nasal lining. They have hair-like structures known as cilia. Coordinated, wave-like beating of the cilia propels the mucus to the back of the pharynx, where it is swallowed, thus removing foreign debris. Interspersed amongst the cilia are microvilli. Stratified squamous nasal epithelial cells line the surface of the nasopharynx and surround the ciliated nasal epithelial cell. The epithelial cell surfaces are covered with tiny microvilli that increase the cell surface area. Mucus, secreted by cells in the epithelial lining (not seen), traps foreign objects, such as bacteria, preventing them from entering the lungs. Magnification: x2, 000 when shortest axis
Licence : Droits gérés
Crédit: Science Photo Library / DENNIS KUNKEL MICROSCOPY
Taille de l’image : 2726 px × 3206 px
Model Release : Non requis
Property Release : Non requis
Restrictions : -

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