Cheek cells. Light micrograph of squamous epithelial cells from the human mouth. These flat,scale-like cells have oval nuclei (purple) and granular cytoplasm. The epithelia are tissues that cover all body surfaces,cavities and tubes apart from the blood and lymph vessels. Epithelial cells form a protective layer within the mouth. Normally,they rest on a basement membrane which separates the epithelium from underlying connective tissue. Blood vessels do not extend beyond the basement layer,and epithelial cells are dependent on oxygen and metabolites diffusing from underlying tissue. Magnification: x1000 at 35mm size | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Murti, Dr. Gopal |
Taille de l’image : | 3708 px × 2516 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |