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: x3540 at 6x7cm size | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Photo Insolite Realite |
Taille de l’image : | 4886 px × 3593 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |