what are the different types of epithelial membranes?
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Epithelial membranes are formed from epithelial tissue attached to a layer of connective tissue. There are three types of epithelial membranes: mucous, which contain glands; serous, which secrete fluid; and cutaneous which makes up the skin.
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['Epithelial tissue. covers body surfaces; lines body cavities, hollow organs, and ducts (tubes); and forms glands.', 'Connective tissue. ... ', 'Muscular tissue. ... ', 'Nervous tissue. ... ', 'Fibroblasts. ... ', 'Macrophages. ... ', 'Plasma cells. ... ', 'Mast cells.']
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The corneal layers include epithelium, Bowman's layer, stroma, Descemet's membrane, and endothelium [Fig. 2].
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['epithelium - the surface "skin" of the the larynx, which is continuous with the lining of the mouth, pharynx and with the trachea below the larynx.', 'lamina propria - three distinct layers, each with a different consistency.']
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['diffusion.', 'facilitated diffusion.', 'osmosis.']
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Epithelial tissues are classified according to the shape of the cells and number of the cell layers formed (Figure 2). Cell shapes can be squamous (flattened and thin), cuboidal (boxy, as wide as it is tall), or columnar (rectangular, taller than it is wide).
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Simple epithelial tissues are generally classified by the shape of their cells. The four major classes of simple epithelium are: 1) simple squamous; 2) simple cuboidal; 3) simple columnar; and 4) pseudostratified.
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['The principal components of the plasma membrane are lipids ( phospholipids and cholesterol), proteins, and carbohydrates.', 'The plasma membrane protects intracellular components from the extracellular environment.']
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['Connective Tissue. Figure 10.3. ... ', 'Epithelial Tissue. Epithelial tissue is made up of cells that line inner and outer body surfaces, such as the skin and the inner surface of the digestive tract. ... ', 'Muscle Tissue. ... ', 'Nervous Tissue.']
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Stratified Epithelium Stratified epithelia consist of more than one layer of cells and only one layer is in direct contact with the basement membrane. Similarly, only one layer of cells has the apical surface exposed to the lumen of the organ or to the external environment.
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['The plasma membrane (also called the cell membrane) is a thin coat of lipids that surrounds a cell. ... ', 'Cytoplasm refers to all of the cellular material inside the plasma membrane, other than the nucleus.']
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['Mucosa.', 'Submucosa.', 'Muscular layer.', 'Serous layer or serosa.']
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['Squamous Epithelium – These are thin, flat cells that are closely packed. ... ', 'Cuboidal Epithelium – These cells are cuboidal in shape. ... ', 'Columnar Epithelium – The columnar epithelium has cells that are pillar-like and column-like.']
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Epithelial tissue is scutoid shaped, tightly packed and form a continuous sheet. It has almost no intercellular spaces. All epithelia is usually separated from underlying tissues by an extracellular fibrous basement membrane. The lining of the mouth, lung alveoli and kidney tubules are all made of epithelial tissue.
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The alveoli consist of an epithelial layer of simple squamous epithelium (very thin, flattened cells), and an extracellular matrix surrounded by capillaries. The epithelial lining is part of the alveolar membrane, also known as the respiratory membrane, that allows the exchange of gases.
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The membrane has several layers – a layer of lining fluid that contains surfactant, the epithelial layer and its basement membrane; a thin interstitial space between the epithelial lining and the capillary membrane; a capillary basement membrane that often fuses with the alveolar basement membrane, and the capillary ...
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Describe the difference between simple and stratified epithelium. Stratified Epithelium are more durable and function primarily to protect. Simple Epithelium are concerned with absorption, secretion, and filtration.