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Which statement/s is/are correct about the extracellular matrix of the connective tissue?
Type I collagen forms the basal lamina of epithelia.
❌
Proteoglycans are very hydrophilic and behave like polyanions.
✅
Glycosaminoglycans are continuously synthesized and simultaneously degraded in the connective tissue.
✅
Glycoproteins are dominated by the protein component, whereas proteoglycans are dominated by the carbohydrate portion of the molecule.
✅
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Which statement/s is/are correct about connective tissue cells?
Mast cell degranulation is associated with allergic reactions.
✅
Plasma cells have abundant basophilic cytoplasm and their function is phagocytosis.
❌
Dead neutrophils cause suppuration (pus).
✅
Macrophages can fuse together to form giant multinucleated cells.
✅
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Glycosaminoglycans
have long polysaccharide chains.
0%
are not found in Wharton's jelly (mucous) connective tissue.
0%
are not part of the extracellular matrix of loose collagenous connective tissue.
0%
are strongly hydrophilic.
0%
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Which statement/s is/are correct about types of collagen?
Type II collagen is present in hyaline and elastic cartilage.
✅
Type I collagen is abundant e.g. in bone tissue or in the dermis of the skin.
✅
Type IV collagen forms branched fibres in the reticular connective tissue.
❌
Type III collagen forms strong and mechanically strong bundles of fibres.
❌
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Which statement/s is/are correct about the connective tissue cells?
Plasma cells have a basophilic cytoplasm due to the abundant granular endoplasmic reticulum.
✅
Granulocytes, lymphocytes, and monocytes can penetrate the connective tissue through the wall of microvessels by diapedesis.
✅
Macrophages (histiocytes) produce histamine and release it into the environment after IgE binding.
❌
Myofibroblasts have contractile filaments and are used e.g. in the retraction of healing wounds.
✅
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