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Human Anatomy - Epithelial and Connective Tissue

Single layer of flattened cells. Simple Squamous Epithelium
Disc-shaped central nuclei and sparse cytoplasm. Simple Squamous Epithelium
Function: Allows passage of materials by diffusion and filtration; protection not as important; lubrication Simple Squamous Epithelium
Location: air sacs of lungs, lining of heart / ventral cavities, blood vessels Simple Squamous Epithelium
Single layer of cubelike cells w/ large, spherical central nuclei Simple Cuboidal Epithelium
Function: Secretion and Absorption Simple Cuboidal Epithelium
Location: Kidney tubules, ducts and secretory of small glands, ovary surface Simple Cuboidal Epithelium
Single layer of tall cells with round to oval nuclei Simple Columnar Epithelium
some cells bear cilia, layer may contain mucus-secreting unicellular glands (goblet cells) Simple Columnar Epithelium
Function: Absorption, Secretion of Mucus and Enzymes Simple Columnar Epithelium
Location: Digestive Tract (stomach to anal canal), gallbladder Simple Columnar Epithelium
Single layer of cells of differing heights, some do not reach free surface. Nuclei on different levels Pseudostratified Columnar Epithelium
Function: Secretion (mucus), propulsion (Antrieb) of mucus Pseudostratified Columnar Epithelium
Location: male's sperm-carrying ducts or ducts of large glands, trachea (upper respiratory tract) Pseudostratified Columnar Epithelium
Thick membrane composed of several cell layers, basal cells are cuboidal or columnar; surface cells are keratinized Stratified Squamous Epithelium
Function: Protection of underlying tissue Stratified Squamous Epithelium
Location: Nonkeratinized: Esophagous, mouth, vagina; keratinized: epidermis Stratified Squamous Epithelium
Two layers of cubelike cells Stratified Cuboidal Epithelium
Function: Protection Stratified Cuboidal Epithelium
Location: Sweat Glands, Mammary Glands, Salivary Glands Stratified Cuboidal Epithelium
Several Cells Layers (basal: cuboidal / superficial: elongated & columnar) Stratified Columnar Epithelium
Function: Protection, Secretion Stratified Columnar Epithelium
Location: RARE, small amount in male urethra and in some gland ducts Stratified Columnar Epithelium
Resembles both stratified squamous and stratified cuboidal (basal: cuboidal or columnar / superficial: dome shaped or squamous) Transitional Epithelium
Function: Stretches readily, permits distension (Dehnung) of urinary organ (volle Blase) Transitional Epithelium
Location: Ureters, bladder and part of urethra Transitional Epithelium
Created by: Franziska



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