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Bone fracture injury in a 12-year-old; spell running forward leaning on…

- - - - Easily break
  - - - Make bones stronger
      - Grow bones back
  - - - Comminuted
        
        Bone fragments
      - Compression
        
        Due to fall
    - - Part of forearm
        
        Ukna
      - The olecranon
- - - - Around diaphysis
      - Hyaline cartilage
    - - Center of diaphysis
      - Develops cavities
    - - Internal cavities
      - Spongy bone forms
    - - Medullary cavity forms
      - Secondary ossification appears in epiphses
    - - Hyaline cartilage remains
        
        Only in epiphyseal plates
        
        Articlular cartilages
    - - Bone deposit
      - Resorption
      - Occurs at surfaces of both:
        
        Periosteum
        
        Endosteum
      - Osteoblasts
      - Osteoclasts
  - - - Displaced
        
        Ends are out of alignment
    - - Complete
        
        Broken all the way
      - Incomplete
        
        Not broken all the way
    - - Open
        
        Compound
        
        Skin is penetrated
      - Closed
        
        Simple
        
        Skin isn’t penetrated
  - - - Compact bone externally
      - Spongy bone internally
      - Articulate cartilage cover surfaces
      - Where growth occurs
    - - Ends of long bone
  - - - Responsible for construction
      - Formation
      - Bones & teeth
    - - Calcium absorption
      - Helps form & maintain strong bones
  - - - Fibrous connective tissue membrane
      - Mesenchymal celks cluster
        
        Osteoblasts forming an:
        
        Ossification center
    - - Secretion continues
        
        Trapped osteoblasts turn into:
        
        Osteocytes
    - - osteoid laid down
        
        embryonic blood vessels
        
        forms honeycomb of immature spongy bone
    - - red marrow develops
      - trabeculae
        
        remodeled and replaced with compact bone
      - Immature spongy bone
        
        Remodeled into mature spongy bone
        
        Eventually filled with red marrow
- - - - More flexible cartilage
      - As they grow
        
        Cartilage hardens
        
        Turns into bone
        
        Some bones fuse together
    - - Continuously growing
      - Most likely to remodel
      - Realign itself
      - If bones are crooked?
        
        Can straighten out itself over time
        
        Heals faster