Nasal cavity. Coloured scanning electron micrograph (SEM) of the surface of the nasal cavity. It is covered in epithelial hair-like structures known as cilia (orange),which line the respiratory tract. They are covered with a wet,sticky mucus that humidifies inhaled air and traps dust particles and other air pollutants. Co-ordinated,wave-like beating of the cilia propels the mucus to the back of the nose (pharynx),where it is swallowed. Magnification: x1800 at 6x7cm size | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Nishinaga, Susumu |
Taille de l’image : | 2935 px × 3635 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |