Simple Squamous
Location: kidney glomeruli, air sacs of lungs, the lining of the heart and
blood vessels, and lining of the ventral cavity
Function: allows passage of materials by diffusion and filtration
Simple Cuboidal
Location: kidney tubules, ducts of small glands, ovary surface, pancreas,
and salivary glands
Function: secretion and absorption
Simple Columnar
Location: Non-ciliated: digestive tract and gallbladder
Ciliated: small bronchi and uterine tubes
Function: absorption, secretion, and propels mucus

STRATIFIED SQUAMOUS
Location: Non-keratinized: esophagus, mouth, vagina
Keratinized epidermis of the skin
Function: protects underlying tissue in areas subjected to abrasion
STRATIFIED CUBOIDAL
Location: sweat glands, developing ovarian follicles
Function: protection and secretion
STRATIFIED COLUMNAR
Location: conjunctiva
Function: protection

PSEUDOSTRATIFIED COLUMNAR
Location: Non-ciliated: large glands and parts of the male urethra
Ciliated: trachea, the upper part of the respiratory system
Function: absorption and secretion of mucus, protection from foreign, and transport of materials such as hormones and enzymes
TRANSITIONAL EPITHELIUM
Location: ureters, urinary bladder, parts of the urethra
Function: stretches readily and permits distension of urinary organs by stored urine