False-colour scanning electron micrograph (SEM) of the epithelium in the oesophagus. Individual epithelial cells are seen here, each with a highly folded surface. These microfolds are called microplicae. At centre right, an obvious boundary to one cell can be seen. This stratified squamous epithelium consists of flattened cells that occur many layers thick. As a muscular non-absorptive tube, the oesophagus transports swallowed food to the stomach. The microfolds on the cells keep the oesophagus moist; trap mucous to lubricate passing food; and strengthen the epithelium against food abrasion. Magnification: x1, 950 at 6x7cm size. Magnification: x3, 125 at 4x5 inch size. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / DEPT. OF ANATOMY / PROF. P. MOTTA |
Taille de l’image : | 3692 px × 4836 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |