BIO 2451 ANATOMY AND PHYSIOLOGY I - PRACTICAL 1 EXAM

BIO 2451 PRACTICAL 1




Simple squamous
epithelium

Allows materials to
pass by diffusion and
filtration in sites
where protection
isn't important;
secretes lubricating
substances in serosae

Found in air sacs of
lungs; lining of heart,
blood vessels, and
lymphatic vessels -




Simple cuboidal
epithelium

Secretion and
absorption

Found in kidney
tubules; ducts and
secretory portions of
small glands; ovary
surfaces

, Simple columnar
epithelium

Absorption; secretion
of mucus, enzymes and
other substances;
ciliated type, propels
mucus (or reproductive
cells) by ciliary action.

Found in digestive
tract, gallbladder, and
excretory ducts of
some glands

Pseudostratified
columnar epithelium

Secretes substances,
particularly mucus;
propulsion of mucus by
ciliary action

Found in trachea and
most of the upper
respiratory tract

Stratified squamous
epithelium

Protects underlying
tissues in areas
subjected to abrasion

Found in esophagus,
mouth, and vagina

Stratified cuboidal
epithelium

Protection

Sweat glands,
mammary glands, and
salivary gland