Epithelial Tissue

Cards

Simple Squamous Epithelium single layer of flat cells,centrally located nucleus lines heart,blood vessels Filtration, diffusion
Simple cuboidal epithelium single layer of cube-shaped cell,centrally located nucleus covers surface of ovary,lines anterior surface of capsule of the lens of the eye secretion and absorption
Nonciliated simple columnar epithlium single layer of nonciliated column-like cells with nuclei newar base of cells,contains goblet cells and cells with microvilli in some locations lines GI tract,ducts of many glands secretion and absorption
Ciliated simpe columnar epithlium single layer of ciliated column-like cells with nuclei near base,contains goblet cells in some location lines some bronchioles,uterine tubes moves mucus and other substances by ciliary action
Pseudostratified columnar elpithelium not a true stratified,nuclei of cells are at different levels,all cells are attached to basement membrane,but not all reach the apical surface lines the airways of most upper respiratory tract,lines larger ducts of many glands secretion and movement of mucus by ciliary action
Stratified squamous epithelium several layers of cells,cubiodal to columnar shape in deep layers,squamous cells form the apical layer and several layers deep to it,cells from the basal layer replace surface cells as they are lost keratinized form layer of skin,nonkeratinized lines mouth,pharynx,larynx protection
stratified cubiodal epithelium two or more layers of cells,apical layer are cubed-shaped ducts of adult sweat glands and esophageal glands and part of male urethra protection and limited secretion and absorption
stratified columnar epithelium several layers of irregular shaped cells,only apical layer has columnar cells lines part of urethra,large excretory ducts of some glands,ex:esphageal glands protection and secretion
transitional epithelium apperance is variable(transitional),shape of cells in apical layer ranges from squamous to cuboidal lines urinary bladder and portions of ureters and urethra permits distension
endocrine glands secretory products(hormones) diffuse into blood after passing through interstitial fluid pituitary gland at base of brain,pineal gland in brain produces hormones that regulate various body activities
Exocrine gland secretory products released into ducts sweat,oil, and earwax glands of the skin: digestive glands such as salivary glands produce substances such sweat, oil,earwax, saliva or digestive enzymes