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| gelatinous, glycoprotein fluid secreted by the living cells |
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| connective tissue, composed of widely-spaced cells within a matrix, that provides firm but flexible support |
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| hollow chambers embedded in the matrix, contain chondrocytes |
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| cartilage producing cells |
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found between bones, cushions the surfaces of joints
it's matrix is composed primarily of chondrin w/ thin collagen fibers to provide support |
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contains fine collagen fibers and many elastic fibers that provide greater elasticity, more flexible that hyaline cartilage
ex. ear, nose, voice box |
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thin, concentric layers
gives bone its characteristic appearance |
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bone producing cells, secrete a hard, calcified matrix that forms lamellae
housed individually in lacunae |
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| lamellae form layered rings around tiny, narrow pathways in the bone |
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| tiny, fingerlike projections in the lamellae that transport nutrients to the osteocytes |
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| one of the most specialized structural connective tissues |
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| type of connective tissue that stores food for the body in the form of fat droplets |
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| oil-filled spherical structures in cell |
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| loosely scattered cells surrounded by a clear, gelatinous matrix |
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| thicker, non elastic fibers |
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| cells that secrete collagen and other fibrous proteins |
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| contains tightly packed collagen fibers making it stronger than loose connective tissue |
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| regular dense connective tissue |
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collagen fibers are extremely long, densely packed, and are arranged in parallel, like the strands of a rope, forming structures that are extremely resistant to stress
ex. Tendons, cords that connect muscles to bones and ligaments, the attachments that connects bones to one another |
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| irregular dense connective tissue |
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collagen fibers lack a parallel arrangement, have many different orientations, often arranged in bundles distributed in all directions throughout the tissue
ex. produces tough outer coverings of organs such as kidneys, muscles, and nerves |
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| classified as a type of connective tissue |
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| protein in plasma, produced by liver which helps blood to clot |
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| protein in plasma, produced by liver which exerts an osmotic force need for fluid balance |
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| protein in plasma, produced by lymphocytes and needed for immunity |
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| Hemoglobin and Chlorocruorin |
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| free-floating respiratory pigments found in annelids |
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| free-floating respiratory pigments found in molluscs and arthropods |
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| mammalian red blood cells, tiny, light pink, biconcave discs most numerous cell type |
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principle phagocytic cells in blood, specialized for seeking out and ingesting foreign bacterial cells and dead host cells
most abundant type of white blood cell and two times as big as red blood cells |
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less common, twice the size of red blood cells, have unlobed nuclei and are more granular appearance when stained
instrumental in the inflammatory ressponse of allergic reactions and help prevent blood form inappropriately clotting withing blood vessels |
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| held defend against parasites, nuclei posseses two lobes |
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| produce antibodies that recognize and destroy forgein cells |
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| largest of the white blood cells, spend brief time developing in the blood before exiting circulation and completing their development in the tissues |
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| greatly enlarged monocytes, giant scavenger cells that engulf bacteria, dead cells, and other debris |
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