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Histology Notes

Histology Notes

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  • 1. CONNECTIVE TISSUEWITH SPECIALPROPERTIES ADIPOSE RETICULAR PIGMENTED
  • 2. ADIPOSE TISSUE• LOOSE C.T.• ADIPOSE CELLS• SIGNET RING POLY HYDERAL• CENTRAL DROPLET VIMENTIN• BASAL LAMINA• YELLOW & BROWN FAT• ENERGY STORAGE TRIGLYCERIDES
  • 3. YELLOW FAT BROWNFAT• ADULTS • EMBRYO• WHITE YELLOW INTERSCAPULAR &• INGUINAL UNILOCULAR • BROWN• SIGNET RING ADIPOCYTE • MULTILOCULAR• VASCULARIZED • NUCLEUS ECCENTRIC • MITOCHONDRIA CYTOCHROME OXIDASE • INCREASED VASCULRATIRY & INNERVATION
  • 4. ELASTIC CONNECTIVETISSUE• YELLOW ELASTIC• LIGAMENTS OF VERTEBRAL COLUMN ELASTIC ARTERY• BUNDLES OF ELASTIC FIBERS• FIBROBLAST
  • 5. RETICUALR CONNECTIVETISSUE• RETICULAR CELLS & FIBERS• THREE DIMENSIONAL SPONGY NETWORK• PROCESSES OVERLAP FIBERS• RETICULAR FRAMEWORK OF HAEMOPOIETIC & LYMPHOID ORGANS
  • 6. CARTILAGE
  • 7. CARTILAGE LOAD BEARING AVASCULAR C.T. CELLS HIGHLY SPECIALIZED MATRIX
  • 8. CLASSIFICATION• HYALINE ARTICULAR NONARTICULAR• ELASTIC• FIBROUS
  • 9. HYALINE NON ARTICULARCARTILAGE• BLUISH HOMOGENOUS GLASSY• SOLID FIRM & RESILIENT• PERCHONDRIUM• CHONDROCYTES• MATRIX FIBERS & GROUND SUBSTANCE
  • 10. PERICHONDRIUM• FIBROUS LAYER DENSE IRREGULAR C.T FIBROBLAST BLOOD VESSELS NERVES & LYMPH VESSELS• CELLULAR LAYER COLLAGEN FIBERS CHONDROGENIC CELLS• ESSENTIAL FOR GROWTH & MAINTENANCE
  • 11. CELLS• CHONDROGENIC STEM CELLS FIBROBLAST• CHONDRBLAST FIBERS & GROUND SUBSTANCE• CHONDRO CYTE ISOGENOUS GROUP LACUNAE
  • 12. FIBERS• COLLAEGEN• TYPE II, IX, X,XI• NOT VISIBLE UNDER THE LIGHT MICROSCOPE• THINNER FIBRIL• REFRACTIVE INDEX• 64 nm PERIODICITY
  • 13. GROUND SUBSTANCE• BASOPHILIC MORE MARKED AROUND ISOGENOUS GROUPS• TERRITORIAL & INTERTERITORIAL MATRIX• FIRM HIGHLY HYDRATED• PROTEOGLYCAN CHONDROITIN & KERATAN SO4 (PROTEOGLYCAN) HYALURONIC ACID• GLYCOPROTEINS CHONDROCYTE & MATRIX • ANCHARIN TENASCIN FIBRONECTIN• RESILIENCE DIFFUSION SHOCK
  • 14. LOCATION• EMBRYONIC SKELETON• LARGER RESPIRATORY PASSAGES• LARYNGEAL CARTILAGES• COSTAL CARTILAGE• EPIPHYSEAL PLATE
  • 15. HYALINE ARTICULARCARTILAGE• ARTICULAR SURFACE OF BONES• NO PERICHONDRIUM• ZONE I • CELLS ARE FLAT // TO SURFACE • // COLLAGEN FIBERS• ZONE II • CELLS LARGE ROUNDED SINGLY / GROUPS • FIBERS ARE OBLIQUE• ZONE III • CELLS IN VERTICAL COLUMN• ZONE IV CALCIFIED MATRIX
  • 16. ELASTIC CARTILAGE• EXTERNAL EAR, AUDITORY TUBE, LARYNX• HYALINE NON ARTICULAR CARTILAGE• YELLOWISH• ELASTIC FIBER
  • 17. FIBROCARTILAGE• INTERVERTEBRAL DISC FIBROCARTILAGE• NO PERICHONDRIUM• ACIDOPHILIC• BUNDLES OF TYPE I COLLAGEN FBERS REGULAR & IRREGULAR WITH GROUPS OF CHONDROCYTE