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13 Cards in this Set
- Front
- Back
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What are some general features of CT?
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highly vascular (unlike epithelial) except for cartilage and tendon
extracellular matrix consists of protein fibers and ground substance |
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What are the CT cells?
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derive from mesenchymal cells
fibroblasts: -immature cells in loose and dense CT -secrete fibers and components of ground substance Adipocytes: -fat cells -store TG (Fat) Mast Cells: -produce histamine White Blood cells: -immune response Macrophages: -engulf bacteria Plasma cells: -antibodies |
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What is the ground substance?
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functions to support and bind cells, stores water, and allows exchange between blood and cells
contains proteins (proteoglycans) and polysaccharides (include GAG which makes it jelly like) |
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What are the glycosaminoglycans?
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Hyluronic acid:
-lubricates joints, in vitreous of eye -hyaluronidase secrets WBC to break down hyaluronic acid to make ground substance more liquid Chondroitin Sulfate: -support in cartilage, bone, skin, and blood vessels Karatan sulfate: bone, cartilage, eye Dermatan sulfate: skin |
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Which two glycosaminoglycans are used for osteoarthritis?
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chondroitin sulfate and glucosamine
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What are properties of Collagen fibers and where are they located?
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resist pulling forces which allow flexibility
found in CT, bone, cartilage, tendons, and ligaments |
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What are elastic fibers and where are they found?
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form a network within a tissue
smaller than collagen consists of proteins elastin surrounded by fibrillin strong and can stretch up to 150 % found in skin, blood vessel walls, and lung tissue |
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What are reticular fibers and where are they found?
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collagen with coating of glycoprotein
produced by fibroblasts forming networks much thinner than collagen found in basement membrane, reticular connective tissue which forms spleen and lymph nodes |
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What are Embryonic tissue, Mesenchyme, and Mucous CT?
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Embryonic CT: present in embryo and fetus
Mesenchyme: only in embryo under skin and along developing bones of embryo Mucous CT: known as Wharton's Jelly is the umbilical cord of fetus |
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What are examples of Loose Connective tissue and where are they found?
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Areolar CT:
-SubQ layer under skin, papillary region of dermis. blood vessels, nerves, and body organs Adipose tissue: -SubQ layer under skin, around heart and kidneys, yellow bone marrow, padding around joints Reticular CT |
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What are examples of Dense CT and where are they found?
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Regular:
-tendons, ligaments, aponeurosis Irregular: -fasciae, reticular region of dermis, perioisteum of bone, perichondrium of cartilage, pericardium of heart, joint capsules and heart valves |
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Where is elastic CT found?
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lung tissue
walls of elastic arteries trachea bronchial tubes vocal cords ligaments between vertebrae |
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Where are the 3 different types of cartilage found?
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Hyaline:
-ends of long bones -anterior end of ribs, nose, trachea, bronchi, bronchial tubes -embryonic and fetal skeleton fibrocartilage: -public symphysis and IVD Elastic: -epiglottis, auricle, auditory tubes |
