False-colour scanning electron micrograph (SEM) of the internal lining,or epithelium,of the bronchial passages in the human lung. Clumps of fine hairs,called cilia,protrude from the tops of specialised epithelial cells (reddish-brown). The micrograph also shows the round goblet cells (yellow) whose function is to release mucus onto the surface of the epithelium. Rhythmic movements of the cilia serve to move bacteria & other particles away from the gas-exchanging parts of the lung & towards the throat where they can be swallowed or coughed up. Magnification: x2,000 at 6x7cm,x1,000 at 35mm size | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Photo Insolite Realite |
Bildgröße: | 3610 px × 4843 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |