Mind map

Cartilage

Chutikan Srisang English

Mind map: cartilage

Map content

Cartilage

Hyaline Cartilage
- nose, larynx, trachea, bronchi
- Developement
  - Mesenchymal cell
    - Chondroblast (young cell)
      - Chondrocyte (Adult cell)
        enclosed in LACUNA
        Many Lacuna >> Cell nest (isogeneous cellgroup)
        สร้าง GS+fibers = Matrix
        Surrounds lacunae
        Territorial matrix (darker stain)
        glycosaminoglycan > collagen
        Between lacunae
        Interterritorial matrix (Paler stain)
  - Perichondrium
    - Outer: Fibrous layer [collagen&fibroblast]
    - Inner:Cellular (chondrogenic) layer [chondroblast]
- Growth
  - Interstitial (mitosis)
  - Appositional
- Structure
  - Near perichondrium
    - small, elliptical lacunae, parallel to the surface
  - Deep
    - larger, polyhedral shape
- Nutrition
  - Cartilage is non vascular
  - Chondrocytes get nourishment from diffustion through the matrix
  - Calcification
    - Chondrocyte will be died
      - start to make the real BONE
Elastic Cartilage
- external ear, epiglottis, auditory canal, corniculat&cuneiform cartilage of larynx
- Similar structure to hyaline cartilage but HAVE ELASTIC FIBER
Fibrocartilage
- found where tendon attaches to bone, intervertebral disks, meniscus(stifle joint), dog heart
- transitional between cartilage and CNT
- Structure
  - a lot of collagen fibers in ECM
  - Bundles parallel to the direction of stress
  - chondrocyte located in rows of small lacunae between collagen bundles
  - *NO difinitive perichondrium