Light micrograph of a section through the stomach wall. The surface epithelial cells (pink, top) produce an alkaline mucus that protects the surface of the stomach from its acid contents. The stomach surface is lined with glandular mucosa that has numerous invaginations, called gastric pits, where the gastric glands open to the lumen (white, top). The gastric glands secrete enzymes and acid to digest the food. Beneath this is the submucosa, which contains blood vessels (blue circles) and lymph follicles (violet). Beneath this are layers of smooth muscle (bright pink) and fat cells (white, bottom). Magnification: x40 when printed at 15cm tall. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / EYE OF SCIENCE |
Bildgröße: | 4016 px × 5020 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: |
|