Epithelium Flashcards
Simple Squamous Function
Allows passage of materials by diffusion and filtration in sites where protection is not important; secretes lubricating
substances in serosae.
Simple Squamous Location
Kidney glomeruli; air sacs of lungs; lining of heart, blood vessels, and lymphatic vessels; lining of ventral body cavity
Simple Cuboidal Function
Secretion and Absorption
Simple Cuboidal Location
Kidney tubules; ducts and secretory portions of small glands; ovary surface.
Simple Columnar Function
Absorption; secretion of mucus, enzymes, and other substances; ciliated type propels mucus (or reproductive cells) by ciliary action.
Simple Columnar Location
Nonciliated type lines most of the digestive tract (stomach to anal canal), gallbladder, and excretory ducts of some glands; ciliated variety lines small bronchi, uterine tubes, and some regions of the uterus.
Pseudostratified Columnar Function
Secretion, particularly of
mucus; propulsion of mucus by
ciliary action.
Pseudostratified Columnar Location
Nonciliated type in male’s
sperm-carrying ducts and ducts of large glands; ciliated variety lines the trachea, most of the upper respiratory tract.
Stratified Squamous Function
Protects underlying
tissues in areas subjected to abrasion.
Stratified Squamous Location
Nonkeratinized type forms
the moist linings of the esophagus, mouth, and vagina; keratinized variety forms the epidermis of the skin, a dry
membrane.
Stratified Cuboidal Function
Stretches readily and
permits distension of urinary organ by contained urine.
Stratified Cuboidal Location
Lines the ureters, urinary
bladder, and part of the urethra.
Stratified Columnar Function
protection and secretion
Stratified Columnar Location
part of the urethra, large ducts of some glands, portion of the conjunctiva of the eye
Transitional Epithelium Function
stretches for distension of urinary organ
