Cells and Tissues (II)
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each of the black spaces below before clicking
on it to display the answer.
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| Regeneration | The replacement of destroyed tissue by the same kind of cells
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| Fibrosis | Repair by dense (fibrous) connective tissue, that is, by the formation of scar tissue
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| Neoplasm | An abnormal growth of cells; sometimes cancerous
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| Hyperplasia | The enlargement of certain body tissues (or organs) because there is some local irritant or condition that stimulates the cells
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| Atrophy | A reduction in size or wasting away of an organ or cell resulting from disease or lack of use
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| Tissues | Groups of cells that are similar in structure and function
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| Epithelium | One of the primary tissues; covers the surface of the body and lines the body cavities, ducts, and vessels
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| Simple Epithelium | Single layer of cells
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| Stratified Epithelium | More than one layer of cells
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| Apical Surface | Surface of an epithelial cell that faces the body surface or of an internal organ
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| Basement Membrane | A thin layer of extracellular material to which epithelial cells are attached in mucosal surfaces
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| Goblet Cells | Individual cells (simple glands) that produce muus
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| Serous Membranes | Membranre that lines a cavity without an opening to the outside of the body (except for joint cavities); serosa
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| Gland | An organ specialized to secrete or excrete substances for further use in the body or for elimination
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| Secretion | An active process in which the glandular cells obtain needed materials from the blood and use them to make their secretion which they then discharge
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| Endocrine Gland | Ductless glands that empty their hormonal products directly into the blood
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| Exocrine Gland | Glands that have ducts through which their secretions are carried to a body surface (skin or mucosa)
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| Connective Tissue | A primary tissue; form and function vary extensively. functions include support, storage, and protection
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| Extracellular Matrix | Nonliving material in connective tissue consisting of ground substance and fibers that separate the living cells
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| Edema | An abnormal accumulation of fluid in body parts or tissues; causes swelling
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| Stroma | Internal framework which can support many free blood cells (large lymphocytes) in lymphoid organs such as lymph nodes, the spleen, and one marrow
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| Intercalated Disks | Contain gap junctions that allow ions to pass freely from cell to cell, resulting in rapid conduction of the exciting electrical impulse across the heart
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| Neurons | Cells of the nervous system specialized to transmit messages throughout the body
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| Supporting Cells | Insulate, support, and protect the delicate neurons, make up the structures of the nervous system---the brain, spinal cord, and nerves
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