False-colour scanning electron micrograph of the mucosa of the stomach,showing the gastric epithelial cells (orange brown) surrounded by droplets of mucus (yellow). The mucus is a viscous fluid which acts as a protective barrier over the membrane. Food which enters the stomach is broken down into polypeptide fragments by the action of gastric juices released into the lumen. The stomach is protected from autodigestion by this layer of mucus-secreting cells. Magnification: x2400 at 6x7cm size | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Photo Insolite Realite |
Bildgröße: | 4717 px × 3813 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |