Skeletal tissues Classification and functions


НазваSkeletal tissues Classification and functions
Дата конвертації02.06.2013
Розмір445 b.
ТипПрезентации


Skeletal tissues

  • Classification and functions

  • Chondroid tissue cells, inter-cellular substance

  • Histogenesis of cartilages

  • Cartilages:

  • a) hyaline;

  • b) elastic;

  • c) fibrocartilage

  • 5. Bony tissue cells, intercellular substance

  • 6. Fibrous bones

  • 7. Lamellar bones

  • 8. Long bones

  • 9. Osteogenesis


Skeletal tissues

  • Chondroid tissue

    • Hyaline
    • Elastic
    • Fibrocartilage
    • Bony tissue
    • Fibrous bone
    • Lamellar bone: a) cancellous
    • b) compact


Functions

  • 1. Supportive

  • 2. Mechanical

  • 3. Protective

  • 4. Ca and P deposition

  • 5. Water-mineral metabolism



Chondroid tissue

  • Cells + intercellular substance (chondromucoid, chondrine fibers)

  • 1. Has no vessels

  • 2. Intercellular components are predominant

  • 3. Chondromucoid

  • 70-80 % H2O

  • 10-15 % org.

  • 4-7 % mineral

  • 4. Chondrine fibers

    • Collagen II
    • Elastic


Differon stem cell hemistem cell chondroblasts chondrocytes



Cartilage



Hyaline cartilage



Elastic cartilage Resorcin stain



Fibrocartilage



Bony tissue cells + matrix (osteoid+ossein fibers+salts)

  • Supports fleshy structures

  • Protects organs

  • Harbors the bone marrow

  • Storage of Ca and P

  • Multiply the forces of skeletal muscle contraction



Osteocyte





Osteoclast



Bones 1. Fibrous 2. Lamellar (compact and cancellous)



Diaphysis





Haversian system





Histogenesis 1. Intramembranous 2. Endochondral



1. Osteogenic islet 2. Osteoid stage 3. Salts impregnation 4. Replacement by lamellar bone



Endochondral histogenesis



Endochondral ossification

  • 1. Cartilage model

  • 2. Perichondral ossification

  • 3. Endochondral ossification

  • 4. Epiphyseal ossification





Epiphyseal plate



Regeneration



Joint



Joint



Thanks for attention !



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