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What are the four major types of tissue?
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1. connective
2. epithelial 3. muscle 4. neural |
Function of connective tissue
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Protects and supports body cells and organs
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Function of epithelial tissue
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Covers the surface of the body cells, hollow cavaties, line ducts, and glands
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Function of muscle tissue
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Responsible for movement
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Function of nerve tissue
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Transmit impulses or action potential
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Origin of four major tissues
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After eight or nine days when sperm fertilizes oocyte, mass of cells that are produced embeds in the lining of the uterus. these cells begin to form germ layers.
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Where do epithelial tissues originate?
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Epithelial tissues originate from three germ layers (ectodermal, mesodermal, and endodermal)
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Where do connective tissues originate?
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Connective tissues originate from one germ layer (mesodermal)
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Where do muscle tissues originate?
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Muscle tissues originate from one germ layer (mesodermal)
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Where do nerve tissues originate?
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Nerve tissues originate from one germ layer (ectodermal)
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Interstitial fluid
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Found in microscopic spaces between cells of a tissue
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Plasma
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The liquid portion of the blood
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