location: air sacs of lungs and lining of the heart, blood vessels, and lymphatic vessels
function: allows materials to pass through by diffusion and filtration, and secretes lubricating substance
simple squamous epithelium
location: in ducts and secretory portions of small glands and in kidney tubules
function: secretes and absorbs
simple cuboidal epithelium
location: ciliated tissues are in bronchi, uterine tubes, and uterus; smooth (nonciliated tissues) are in the digestive tract, bladder
function: absorbs; it also secretes mucous and enzymes
simple columnar epithelium
location: ciliated tissue lines the trachea and much of the upper respiratory tract
function: secretes mucus; ciliated tissue moves mucus
pseudostratified columnar epithelium
location: lines esophagus, mouth, and vagina
function: protects against abrasion
stratified squamous epithelium
location: lines the bladder, urethra, and the ureters
function: allows the urinary organs to expand and stretch
transitional epithelium
location: mammary and salivary glands
function: protects tissue
stratified cuboidal epithelium
location: male urethra, certain glands and ducts
function: secretes and protects