Epithelial Tissue w/ Pictures

Simple Columnar

Function: absorption, secretion

Location: stomach, intestine, gallbladder, uterine ducts

Transitional Epithelium

Function: stretch and recoil

Location: bladder, vagina, anus ; cuboidal

Stratified Squamous - Keratinized

Tough, water resistant, protects against abrasion and dehydration ; Location: hair, nails, skin

Transitional Epithelium

Function: stretch and recoil

Location: bladder, vagina, anus ; cuboidal

Simple Cuboidal

Function: secretion and absorption

Location: kidney tubules, thyroid gland

Stratified Squamous - Non-keratinized

Resists abrasion but can dry out ; Location: pharynx, esophagus, anus, vagina

Simple Cuboidal

Function: secretion and absorption

Location: kidney tubules, thyroid gland

Simple Columnar

Function: absorption, secretion

Location: stomach, intestine, gallbladder, uterine ducts

Simple Squamous

Function: absorption, diffusion, reduction of friction

Location: capillary walls, eyes, lung alveoli

Simple Squamous

Function: absorption, diffusion, reduction of friction

Location: capillary walls, eyes, lung alveoli

Stratified Squamous - Non-keratinized

Resists abrasion but can dry out ; Location: pharynx, esophagus, anus, vagina

Simple Columnar

Function: absorption, secretion

Location: stomach, intestine, gallbladder, uterine ducts

Stratified Cuboidal

Function: secretion, absorption

Location: sweat glands, mammary glands

Transitional Epithelium

Function: stretch and recoil

Location: bladder, vagina, anus ; cuboidal

Stratified Columnar

Function: absorption, secretion

Location: salivary glands, pancreas

Stratified Cuboidal

Function: secretion, absorption

Location: sweat glands, mammary glands

Psuedostratified Columnar

Function: absorption, secretion

Location: male reproductive tract, trachea, nasal cavities

Transitional Epithelium

Function: stretch and recoil

Location: bladder, vagina, anus ; cuboidal

Psuedostratified Columnar

Function: absorption, secretion

Location: male reproductive tract, trachea, nasal cavities

Stratified Squamous-Non-keratinized

Resists abrasion but can dry out ; Location: pharynx, esophagus, anus, vagina

Psuedostratified Columnar

Function: absorption, secretion

Location: male reproductive tract, trachea, nasal cavities

Stratified Columnar

Function: absorption, secretion

Location: salivary glands, pancreas

Transitional Epithelium

Function: stretch and recoil

Location: bladder, vagina, anus ; cuboidal

Psuedostratified Columnar

Function: absorption, secretion

Location: male reproductive tract, trachea, nasal cavities

Epithelia

Skin, has exocrine & endocrine glands, cover exposed surfaces, physically protects from surfaces, selective abosption & secretion, provides sensation, lines internal cavities and passageways

Exocrine glands

Secrete to external surfaces or into ducts

Endocrine glands

Secrete hormones that are distributed in the bloodstream

Neuroepithelium

Sensory epithelium found in special sense organs

Apical surface

Faces exterior of body or internal space, top

Base

Attached to underlying tissues

Basolateral surface

Includes base and lateral sides

Polarity

Structural and functional differences between exposed and attached surfaces

Lumen

Space inside a tube

Mesothelium

lining ventral body cavities; simple squamous

Endothelium

lining heart and blood vessels

Stratified Squamous

Function: protects from abrasion

Location: mouth, throat, vagina, esophagus, anus

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