• Cheek cells

Epithelial Tissue - basic principle

Simple squamous epithelium Nucleus of epithelial cells Squamous epithelial cells Simple squamous epithelium

Simple cuboidal epithelium Nucleus of epithelial cells Cuboidal epithelial cells Nucleus of epithelial cells Cuboidal epithelial cells Simple cuboidal epithelium

Simple columnar epithelium Nucleus of the epithelial cell Nucleus of the epithelial cell Columnar epithelial cell Columnar epithelial cell Simple columnar epithelium

Simple columnar epithelium with microvilli Columnar epithelial cell Columnar epithelial cell Microvilli Microvilli Nucleus of columnar epithelial cell Nucleus of columnar epithelial cell Simple columnar epithelium

Stratified squamous epithelium Nucleus of the squamous epithelial cell Dividing cuboidal cells at the bottom Dividing cuboidal cells at the bottom Nucleus of the squamous epithelial cell Squamous epithelial cell Squamous epithelial cell Stratified squamous epithelium

Ciliated pseudostratified columnar epithelium with goblet cells Cilia Cilia Goblet cell with mucus Goblet cell with mucus Columnar epithelial cell Columnar epithelial cell Ciliated pseudostrtified columnar epithelium with goblet cells

Transitional epithelium Squamous epithelial cells Rounded epithelial cells Transitional epithelium lining a distended urinary bladder Transitional epithelium lining a collapsed urinary bladder