Skeletal tissues Classification and functions


НазваSkeletal tissues Classification and functions
Дата конвертації18.04.2013
Розмір445 b.
ТипПрезентации


Skeletal tissues

  • Classification and functions

  • Chondroid tissue cells, intercellular substance

  • Histogenesis of cartilages

  • Types of 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 blood vessels

  • 2. Intercellular components predominate

  • 3. Chondromucoid

  • 70-80 % H2O

  • 10-15 % org.

  • 4-7 % mineral

  • 4. Chondrine fibers

    • Collagen II
    • Elastic


Chondroid tissue differon

  • I Stem cell

  • II Hemistem cells

  • III Chondroblasts

  • IV Chondrocytes

  • Chondroclasts – originate from mesenchyme

  • Growth: appositional

  • interstitial



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 /spongy)



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



Growth zone



Epiphyseal plate



Regeneration



Joint



Joint



Regulation

  • 1. Nutrition

  • 2. Endocrine:

    • Parathormone
    • Calcitonin
    • Sex hormones
    • Growth hormone
  • 3. Mechanical

  • 4. Piezoelectric effect



Схожі:

Skeletal tissues Classification and functions iconSkeletal tissues Classification and functions

Skeletal tissues Classification and functions iconIllnesses of jaws classification

Skeletal tissues Classification and functions iconRespiratory system Organs and functions


Додайте кнопку на своєму сайті:
dok.znaimo.com.ua


База даних захищена авторським правом ©dok.znaimo.com.ua 2013
звернутися до адміністрації
dok.znaimo.com.ua
Головна сторінка