squamous epithelium

Squamous epithelium is one of several types of epithelia.

In anatomy, squamous epithelium (from Latin squama, "scale") is an epithelium characterised by its most superficial layer consisting of flat, scale-like cells called squamous cell. Epithelium may possess only one layer of these cells, in which case it is referred to as simple squamous epithelium; or it may possess multiple layers, referred to then as stratified squamous epithelium. Both types perform differing functions, ranging from nutrient exchange to protection.

Cancers of the squamous cell epithelium

These include squamous cell carcinoma, basal cell carcinoma, and other adnexal tumors.

Additional images

Micrograph of normal stratified squamous epithelium (right of image) and the metaplastic epithelium of Barrett's esophagus (left of image). Alican blue stain.

Schematic view of simple squamous epithelium

External links

• Histology at KUMC epithel-epith02 Simple squamous epithelium of the glomerulus (kidney)
• Diagrams of simple squamous epithelium
• Histology at KUMC epithel-epith12 Stratified squamous epithelium of the vagina
• Histology at KUMC epithel-epith14 Stratified squamous epithelium of the skin (thin skin)
• Histology at KUMC epithel-epith15 Stratified squamous epithelium of the skin (thick skin)
• Stratified squamous epithelium of the esophagus