what epithelial tissue lines blood vessels?
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The endothelium is the epithelial tissue that lines vessels of the lymphatic and cardiovascular system, and it is made up of a single layer of squamous cells. Simple squamous epithelium, because of the thinness of the cell, is present where rapid passage of chemical compounds is observed.
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Transitional epithelium lines the renal pelvis, ureters and urinary bladder.
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The cells in this tissue are tightly packed within a thin ECM. Forming sheets that cover the internal and external body surfaces (surface epithelium) and secreting organs (glandular epithelium). Functions of epithelial tissue are secretion, protection, absorption, transportation and special sensory receptive.
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['Lining epithelium.', 'Lamina propria.', 'Muscularis propria.', 'Serosa/Adventitia.']
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The four types of tissues in the body are epithelial, connective, muscle, and nervous. Epithelial tissue is made of layers of cells that cover the surfaces of the body that come into contact with the exterior world, line internal cavities, and form glands.
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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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Characteristics of Epithelial Layers Epithelial tissue is composed of cells laid out in sheets with strong cell-to-cell attachments. These protein connections hold the cells together to form a tightly connected layer that is avascular but innervated in nature.
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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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Epithelial tissue is made up of the cell and a small amount of intercellular matrix, while connective tissues are made up of the cell and a huge amount of intercellular matrix. ... Epithelial tissues are not enclosed by blood capillaries while in connective tissue, cells are enclosed by blood capillaries.
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Structure. 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.
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Epithelial cells make up tissues such as the hair, skin, and nails. These cells also line the internal organs and are an important part of many glands. Keratins are best known for providing strength and resilience to cells that form the hair, skin, and nails.
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The different types of epithelial tissues are characterized by their cellular shapes and arrangements: squamous, cuboidal, or columnar epithelia. Single cell layers form simple epithelia, whereas stacked cells form stratified epithelia.
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Despite there being many different types of epithelial tissue all epithelial tissue have just five characteristics, these are cellularity, polarity, attachment, vascularity, and regeneration. Cellularity as the name suggests means that the epithelium is made up almost entirely of cells.
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In humans, a simple columnar epithelium lines most organs of the digestive tract including the stomach, small intestine, and large intestine. Simple columnar epithelia line the uterus.
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Epithelial tissue is separated from underlying tissue by a basement membrane. This tissue protects the body, secretions, excretions, absorption, and allows the body to sense the outside world. Connective tissue supports, connects, binds, or separates other tissues or organs.
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Epithelial membranes consist of epithelial tissue and the connective tissue to which it is attached. The two main types of epithelial membranes are the mucous membranes and serous membranes.
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In epithelial tissue, cells are closely packed with little or no extracellular matrix except for the basal lamina that separates the epithelium from underlying tissue. The main functions of epithelia are protection from the environment, coverage, secretion and excretion, absorption, and filtration.