connective ti ssue part 2
DESCRIPTION
Histology NotesTRANSCRIPT
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GROUND SUBSTANCE
COLOURLESS TRANSPARENT VISCOUS GEL PRESENT B/W CELLS & FIBERS OF CONNECTIVE TISSUE
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COMPOSITION
PROTEOGLYCANS
GAGS + PROTEIN CORE
(90-95%) + (5%)
GLYCOPROTEINS
PROTEINS + CHO
(90-95%) + (5%)
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PROTEOGLYCANS
GAGS COVALENTLY BOUND PROTEIN CORE
BASOPHILIC
HYDRATED GEL
GROWTH FACTORS
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GAGS
UNBRANCHED LONG CHAIN POLY SACCHARIDES
REPEATING DISACCHARIDE UNITS
URONIC ACID + HEXOSAMINE + -VE CHARGED UNIT( sulphate, carboxyl, hydroxyl)
-VE CHARGED SO4 0R CARBOXYL
BASOPHILIC
HYDRATED GEL
SULPHATED & NON SULPHATED
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SULPHATED GAG
CHONDROITIN 4 & 6 SO4
CARTILAGE
KERATAN SO4 CORNEA CARTILAGE NUCLEUS
PULPOSUS
INCREASES WITH AGE
DERMATAN SO4
SKIN
HEPARAN SO4 AORTA LUNG LIVER BASAL
LAMINA
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NONSULPHATED
HYALURONIC ACID
LONG CHAIN NON SO4 GAG WITHOUT A PROTEIN CORE
ALL ECM (embryonic & developing)
INTERACTS WITH SPECIFIC RECEPTORS ON THE CELLS
PROTEOGLYCAN AGGREGATE (LINKER PROTEIN)
VISCOUS SOLUTION
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GLYCOPROTEINS PROTEIN + CHO
FILAMENTOUS PROTEINS
ADHESIVE PROPERTY
GLCOSYLATED
BINDING SITES FOR
ECM MOLECULES
CELL ADHESION MOLECULES
SIGNALING MOLECULES
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FUNCTIONS OF GROUND SUBSTANCE
FILLS SPACES
LUBRICANT
BARRIER
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LOOSE C.T.
MOST GENERALIZED CELLULAR, ABUNDANT GROUND
SUBSTANCE & FEW FIBERS FIBROBLAST, FAT CELL & WANDERING
CELLS VISCOUS GEL LIKE GROUND SUBSTANCE THIN MESH WORK OF COLLAGEN &
ELASTIC FIBER HIGHLY VASCULAR SUPERFICIAL FACIA,BENEATH EPITHELIUM FUNCTIONS
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DENSE C.T.REGULAR & IRREGULAR
DENSE PACKING OF FIBER
FEW CELLS & LITTLE GROUND SUBSTANCE
LIMITED VASCULAR SUPPLY
REGULAR & IRREGULAR
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DENSE IRREGULAR C.T.
THICK BUNDLES OF COLLAGEN
RUNNING IN ALL DIRECTIONS
AREAS SUBJECT TO CONSIDREABLE MECHANICAL STRESS
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DENSE REGULAR C.T.
DENSELY PACKED // FIBERS
CORDS BANDS OR SHEETS
TENDONS LIGAMENT & APONEUROSES
GREAT TENSILE STRENGTH
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TENDON
CORD LIKE
WHITE INEXTENSIBLE
CELLS IN ROWS // FIBER
TENDON CELL
ENDOTENDINEUM, EPITENDINEUM
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APONEUROSES
Sheet of // fibers, adjacent layer at angle
LIGAMENTS
Similar to tendon less regular, fibrous or yellow elastic
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C.T with SPECIAL PROPERTIES
ADIPOSE, RETICULAR, PIGMENTED
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ADIPOSE TISSUE
FAT STORING TISSUE
ADIPOCYTES
RICH BLOOD SUPPLY
WHITE & BROWN ADIPOSE TISSUE
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WHITE ADIPOSE TISSUE
UNILOCULAR ADIPOCYTES (SIGNET
RING)
SPHERICAL POLYHEDRAL
CONDENSED LIPID + VIMENTIN
ORGANIC SOLVENT XYLENE
ENERGY STORAGE INSULATION & CUSHIONING OF VITAL ORGANS
LEPTIN & CYTOKINES
LIPOMAS & LIPOSARCOMAS
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BROWN ADIPOSE TISSUE
SMALLER, MULTILOCULAR, NUCLEUS ROUND ECCENTRIC OF CAPILLARIES
RICH SUPPLY
> MITOCHONDRIA WITH CYTOCHROME OXIDASE
< GOLGI, r ER & s ER
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RETICULAR C.T.
RETICULAR FIBERS & RETICULAR CELLS
DELICATE NETWORK
RETICULAR CELLS, CYTOPLASMIC PROCESSES, PARTIALLY COVER THE RETICULAR FIBERS, MONONUCLEAR PHAGOCYTIC SYSTEM
HEMATOPOIETIC & LYMPHOID ORGANS