Epithelial Tissues: Classifications, Descriptions, Functions & Locations

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simple

a single layer of epithelial cells

stratified

two or more layers of epithelial cells

apical

stratified epithelia are classified according to the appearance of the cells at the ___ surface

squamous cuboidal columnar

list the three basic shapes of covering and lining epithelial tissues

squamous

___ cells are flattened and thier nuclei usually appear as flattened discs

cuboidal

____ cells are box-like and thier nuclei are usually sperical

columnar

____ cells are tall and column shaped with nuclei that are usually elongated top to bottom and are genearlly located close to the base of the cell

endothelial

simple squamous epithelials cells are called ___ cells

endothelial

cells that line the internal surfaces of blood vessels and the heart and/or form lymphatic vessels; classified as simple squamous

mesothelium

refers to the simple squamous epithelium present in serous membranes that line the ventral body cavity and cover the outer surface of the organs it surrounds

simple squamous

epithelim that has a single layer of flattened cells with disc-shaped central nuclei and sparse cytoplasm

simple squamous

epithelim that allows passage of materials by diffusion and filtration in sites where porection is not importana

simple squamous

epithelim that secretes lubricating substances in serosae

simple squamous

epithelium that is located in air sacs of lungs, lining of heart, blood vessels and lymphatic vessels and the lining of the ventral body cavity serosae

stratified squamous

epitheliumthat are thick membranes composed of several cell layers; basal cells are cuboidal or columnar and metabolically active; surface cells are squamous; basal cells are active in mitosis and produce the cells of the more superficial layers

keratinized

in the ____ type of stratified squamous epithelium, the surface cells are full of keratin and dead

stratified squamous

epithelium that protects underlying tissues in areas subjected to abrasion

stratifed squamous

epithelium that forms moist linings of the esophagus, mouth and vagina (nonkeratinized)

stratified squamous

epithelium that forms the epidermis of the skin (keratinized)

esophagus, mouth vagina skin

list 4 linings where stratified squamous epithelium are located

heart, blood vessels, lymphatic vessels, ventral body cavity, air sacs of lungs

list 5 linings where simple squamous epithelium are located

simple cuboidal

epithelium that has a single layer of cubelike cells with large, spherical central nuclei

simple cuboidal

epithelim that secretes and absorbs

simple cuboidal

epithelium that is located in the kidney tubules; ducts and secretory portions of small glands; ovary surface

kidney tubules, ducts, ovary surface

list 3 places simple cuboidal epithelium cells are located

stratified cuboidal

epithelium that is generally two layers of cubelike cells

stratified cuboidal

epithelium that serves as protection

stratified cuboidal

epithelium that is located in the largest ducts of the sweat glands, mammary glands and salivary glands

sweat, mammary, salivary

name three glands that stratified cuboidal epithelium form

simple columnar

epithelium that is a single layer of tall cells with oval nuclei; some have cillia; layer may contain mucus-secreting goblets

goblet

mucus-secreting unicellular glands

simple columnar

epithelium that absorb, secrete mucus, enzymes and other substances

ciliated simple columnar

epithelium that propel mucus or reporductive cells by ciliary action

simple columnar

epithelium that line most of the digestive tract (stomach to anal canal), gallbladder and excretory ducts of some glands

ciliated simple columnar

epithelium that line small bronchi, uterine tubes and some regions of the uterus

digestive tract, gallbladder, excretory ducts, small bronchi, uterine tubes

list 5 areas that are lined with simple columnar epithelium

stratified columnar

epithelium that are several cell layers thick; basal cells are usually cuboidal; superficial cells are elongated

stratified columnar

epithelium that protects and secretes

stratified columnar

epithelium that is rare in the body; can be found in small amounts in male urethra and large ducts of some glands

male urethra, large ducts of glands

list 2 places that stratified columnare epithelium can be found

pseudostratified columnar

epithelium that is a single layer of cells of differing heights, some not reaching the free surface; nuclei seen at different levels; may contain mucous-secreting cells and bear cilia

pseudostratifed columnar

epithelium thats function is; secretion (particularly of mucus) propulsion of mucus by ciliary action

pseudostratified columnar

epithelium in male's sperm-carrying ducts and ducts of large glands

pseudostratified ciliated columnar

epithelium that lines the trachea and most of the upper repiratory tract

transitional

epithelium that resembles bot stratified squamous and stratified cuboidal; basal cells cuboidal or columnar;surface cells dome shaped or squamouslike, depending on degree of organ stretch

transitional

epithelium that stretches readily and permits distension or urinary organ by contained urine

transitional

epithelium that lines the ureters, bladder and part of the urethra

ureters, bladder, urethra

list 3 places that transitional epithelium lines

epithelial, connective

membranes that cover and line body structures are genearlly formed from both ___ and underlying ___ tissues

cutaneous, mucous, serous

list the 3 types of covering and lining membranes

cutaneous

the membrane that is the skin

mucous

the membranes that line cavities that open to the exterior

serous

the membranes present in the ventral body cavities

mesothelial

epithelial cells that form serous membranes are called ___ cells

mesothelium

srous membranes are compsed of a simple squamous epithelium called ____ that resides atop a thin layer of loose connective tissue;

mucous

____ membranes which are formed by epithelial cells that line the internal sufaces of the hollow organsof the digestive, respiratory and urogenital tracts

mucous

____ membranes are wet or moist surfaces because they are bathed by secretions

lamina propria

the epithelial sheet that forms a mucous membrane is genearlly underlain by a layer of loose connective tissue called the ___ ___

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