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