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Week 4
Introduction to tissues
| Term | Definition |
|---|---|
| Epithelial Tissue | covers and protects the body surface, lines body cavities, specializes in moving substances into and out of the body or particular organs (secretion, excretion, and absorption), and forms many glands. |
| Connective Tissue | functions to support the body and its parts, connect and hold them together, transport substances through the body, and protect it from foreign invaders. |
| Muscle Tissue | produces movement; it moves the body and its parts. |
| Nervous Tissue | may be the most complex tissue in the body. It specializes in communication among the various parts of the body and in integration of their activities. |
| Primary Germ Layers | endoderm, mesoderm, and ectoderm and within the first 2 weeks after conception, cells of the offspring move and regroup in an orderly way |
| Proteoglycans | give it a range of different consistencies, depending on the specific tissue. |
| Extracellular Matrix (ECM) | tissues differ in the amount and kind of fluid material be-tween the cells |
| Basement Membrane (BM) | a thin, gluelike connection between a sheet of epithelial cells and the underlying fibrous connective tissue. |
| Regeneration | growth of functional new tissue |
| Keloid | atypical and unusually thick scar that may develop in the lower layer of the skin |
| Epithelial Membrane | composed of epithelial tissue glued by a basement membrane to an underlying layer of supportive connective tissue |
| Connective Tissue Membrane | com-posed exclusively of various types of connective tissue; no epithelial cells are present in this type of membrane |
| Cutaneous Membrane | covers body surfaces that are exposed to the external environment. |
| Serous Membrane | lines cavities that are not open to the external environment and covers many of the organs inside these cavities. |
| Mucous Membrane | epithelial membranes that line body surfaces opening directly to the exterior. |
| Novial Membrane | lining the spaces between bones and joints that move are classified as connective tissue membranes. |
| Synovial Fluid | membranes are smooth and slick and secrete a thick and colorless lubri-cating fluid |
Created by:
Sandoval.Sam
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