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27 Cards in this Set
- Front
- Back
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Connective Tissue |
Most abundant, supports and binds, and strengthens other tissues such as bone used in energy (fat tissue) is protection (blood) |
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Connective tissue (CT) characteristics |
very vascular, lots of nerves much matrix (intercellular material) few cells does not have a free surface |
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Fibroblast (CT Cell) |
Fibroblasts- Produces fibers in matrix, form intercellular matrix material, young immature cells, become fibrocytes. |
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Macrophages (CT Cell) |
Formed from WBC, phagocytes function as part of bodys defence Plasma cell produced from WBC, produce antibodies to provide immunity |
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Mast Cells (CT Cell) |
Found along small blood vessels Produce histamines- dilate blood vessels Produce heparin- prevents blood clots Inflammatory response w/ damage, allergens, etc/ |
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How is Connective Tissue Categorized? |
By consistency of the matrix, and the type of fibers present. |
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What is the purpose of fibers in the connective tissue? |
To provide strength and support |
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Collagen - CT Fiber |
White, strong, non elastic, tough, made up of protein, most abundant protein in the body, found in bone, cartilage, tendons and ligaments. |
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Elastic - CT Fiber |
Yellow elastic fibers, provide strength and stretch Found in arteries skin and lungs |
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Reticular- CT Fiber |
Provide framework for many organs, like spleen and liver, provide support in blood vessels, around fat cells and nerve fibers. |
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Loose CT Tissue |
abundant, loose fibers, not much structure, solution or gel like matrix, elastic, collagen AND reticular fibers. Found under skin attaches to ep tissue and underlying tissues, around blood vessels and nerves for support, found in mucous membranes |
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adipose CT tissue |
Fat filled cells Cushion, insulation, energy Eyes, kidney, bone |
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Dense CT |
Collagen fibers Irregular arranged no direction of strength occurs in sheets, and capsule around organs like kidneys and testes. Regular- one direction, parallel, provide strength in two directions tendons, ligaments |
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Elastic CT |
Elastic walls Artery walls, trachea, bronchi |
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Reticular CT |
Reticular fibers Framework for organs, liver, spleen, arteries, fat cells |
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CT Proper |
Solution to gel like matrix includes all connective tissues that aren't cartilage, bone, blood. |
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Cartilage |
Rubbery matrix, no blood vessels, collagen and elastic fiber, rubber like matrix (chondrotin) |
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Hyaline Cartilage |
fibers not visible, homeogenous matrix most abundant cartilage ends of bone, costal cartilage- nose, trachea, bronchi flex, support, reduces friction formed much of skeleton in embryo life |
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Fibrocartilage |
Collagen fibers Strong and rigid Publc symphsis(hip bones), discs between vertebrae |
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Elastic Cartilage |
Elastic fibers, strength and elastic Epiglottis (throat flap), pinna of ear |
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Bone- (Osseous Tissue)- Connective Tissue |
Cartilage and bone together form the skeletal system Matrix is composed of hard CaCO3 and CaPO4 and fibers Bone cells (osteocytes) are trapped in the matrix |
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Two types of bones |
Compact or dense Porous or spongy (cancellous) |
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Haversian System or "Osteon" |
Haversian Canal ( ) contains blood vessels and nerves Lamellae- concentric rings of matrix Lacuna- space between Lamellae in which osteocytes are enclosed Canaliculi- Small canals extending to lacuna so nutrients can reach bone cells |
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Blood- Type of connective tissue- |
Liquid matrix, called plasma Within the matrix are cells and cell fragments, RBCs, WBCs and platelets |
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Epithelial Membrane - Mucous membrane |
composed of ep and ct tissue -mucous membranes- GI tract, respiratory, exretory, reproductive secrete mucous to prevent drying out secrete enzymes for digestion trap dirt in respiratory |
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Epithelial Membrane- Serous membrane |
Lines cavities that do not open to the outside and covers the organs in the cavities parietal- lines the cavities visceral- covers the organs (outside) serous fluid- secreted by membrane to reduce friction |
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Synovial membrane |
Lines cavities of free, movable joints Does not open to the exterior loose connective tissue, fibers, fat Synovial fluid to lubricate joints and nourish cartilage, also found in tendons |
