Animal tissue by viel joy piston

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This is all about Animal Tissue, its types and functions.

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Animal tissue by viel joy piston

  1. 1. Categories of TissuesoEpitheliumoConnectiveoMuscleoNervous
  2. 2. Categories of Tissues Epithelial tissueEpithelial tissue covers thewhole surface of the body. Itis made up of cells that areclosely packed and arecomposed of one or morelayers. This tissue isspecialized to form thecovering or lining of allinternal and external bodysurfaces. Epithelial tissuethat occurs on surfaces onthe interior of the body is Cellular arrangements in epithelialknown as endothelium. tissues. (a) (a) Squamous. (b) Cuboidal. (c) Columnar. (d) Stratified squamous. (e) Pseudostratified. (f) Transitional.
  3. 3. Categories of Tissueso Characterized by the cells widely separated from each other in a matrix that is produced by the cells.o Tissue protects and supports.o Cell Matrix composed of two regions oGround oLiquid (sol), Gel, Gum or solid oFibers oNon-elastic (= white or
  4. 4. Categories of TissuesoLoose (Areolar) Connective TissueoDense Connective TissueoAdiposeoCartilageoBoneoBlood
  5. 5. Categories of Tissueso Gel like ground with both elastic and non-elastic fibers running though the ground in many directions. o Wraps and cushions organs o Under the skin
  6. 6. Categories of Tissues• Nuclei and fibers arranged in parallel rows. • Tendons and ligaments • Fibers mostly non-elastic
  7. 7. Categories of Tissues• Function as storage cells for adipose (lipids)• Adipose cells contain a large vacuole which in the live cell contains lipids.• Cell nucleus and cytoplasm are pushed out to edge of cell membrane.
  8. 8. Categories of Tissues• Ground of matrix is gum like.• Cells are found in Lacunae within the matrix.• Fibers may be elastic or non-elastic, or a form of non-elastic called reticular(where the non-elastic fibers of very thin) • Hyaline Cartilage-example on the ends of bones • Elastic Cartilage- example ear cartilage
  9. 9. Categories of Tissues
  10. 10. Categories of Tissues
  11. 11. Categories of Tissues• Ground of matrix is Solid (Calcium carbonate).• Has blood supply and nerves running through the Haversian canal systems.
  12. 12. Categories of Tissues• Liquid matrix = plasma • 90% water • 10%Plasma proteins, electrolytes, hormones, oxygen, glucose etc.• Formed elements • Erythrocytes -48billion(female) to 54 billion (male) cell / ml of blood in humans. Mammals are enucleated while rest of the vertebrates they have nuclei • Leukocytes -about 7.5 million / ml of blood
  13. 13. Categories of Tissues
  14. 14. Categories of Tissues Muscle TissueTissue with cells having fibers specialized for contraction.  Skeletal Muscle (Striated, voluntary) Parallel elongated cells (fibers)  multinucleated and each cell is the length of the muscle. Light meat, Dark meat—Slow twitch, fast twitch muscle  Smooth Muscle (Visceral, involuntary) Cells are long and tapered. Organized into sheets of muscle.  Cardiac Muscle Intercalated disc Myogenic branched
  15. 15. Categories of TissuesMuscular tissueMuscles of the body are made up of elongated muscle cells alsoknown as muscle fibre. The movement of the body is broughtabout by the contraction and relaxation of contractile proteinpresent in muscle cells. These contractile proteins are actin andmyosin.
  16. 16. Categories of Tissues
  17. 17. Categories of Tissues
  18. 18. Categories of Tissues
  19. 19. Categories of Tissues• Cells specialized to polarize and depolarize.• Cell is a neuron
  20. 20. Categories of Tissues

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