Please enable JavaScript.

Coggle requires JavaScript to display documents.

12 year old boy with a bone fracture, elbow appears broken, and part of…

- - - - filled with spongy bone.
        
        Red marrow fills the spaces in the spongy bone
        
        epiphysis meets the diaphysis at the metaphysis
        
        narrow area that contains the epiphyseal plate
        
        Growth plate
        
        disc of hyline cartilage
        
        1 more item...
        
        side of the epiiphyseal plate facing the epiphisis contains resting cartilage
        
        1 more item...
        
        bone stops growing in early adulthood
        
        cartilage is replaced by osseous tissue
        
        1 more item...
    - - the periosteum forms the outter Surface of bone
        
        fibrous layer and cellular layer
      - endosteum lines the medullary cavity
    - - articular cartilage
  - - - runs proximal and distal of bone
    - - Called medullary cavity
        
        filled with yellow marrow
  - - - collagen fibers lay on rings of Lamella
        
        in opposite direction
        
        Elasticy and flexibility
- - - - Osteoclast
        
        Osteoblast
        
        (builds bone) lays down osteoids
        
        which are mostly collagen
        
        Protein(organic)
        
        Osteoid
        
        which attracts inorganic
        
        Calcium
        
        Shaves on bone
        
        Macrophage
  - - - -mass of clotted blood forms at fracture site
        
        -torn blood vessels hemorrhage
        
        -site becomes swollen, painful, and inflamed
      - Fibrocartilaginous Callus Formation
        
        -fibrocartilaginous callus forms
        
        -granulation tissue/soft tissue forms a few days after fracture
        
        -capillaries grow into tissue and phagocytic cells (WBCs) begin cleaning derbis
        
        fibroblasts secrete collagen fibers that connect broken bone ends
        
        Bony Callus Formation
        
        -new bone trabeculae appears in fribrocartilaginous callus
        
        -fibrocartilaginous callus converts into bony/hard callus
        
        -bone callus begins 3-4 weeks after injury and continues until firm union is formed 2-3 months later
        
        Bone Remodeling
        
        Open Reduction
        
        surgery is required to align bones... screws, plates, and rods may be used to hold bones in place
        
        Factors of Healing Time
        
        -age
        -if patient is smoker...
        
        1 more item...
        
        reduction in which fractured bones are realigned by manipulation rather than surgery
        
        nonsurgical
        
        1 more item...
        
        -excess material on bone shaft exterior and in the medullary cavity is removed
        
        -compact bone is laid down to reconstruct shaft walls
  - - - occurs in red bone marrow (CT)
        
        stem cells form red, and whitee blood cellsalso platelets
- - - - ossification zone
- - - - brittle bone from lack of nutrients
  - - - olecranon
        
        medial condyle
- - - - transverse: straight across
        
        spiral: often from twisting
        
        comminuted fracture: more than two pieces
        
        impacted fracture: one fragment driven into another
        
        greenstick fracture: incomplete fracture with splintering
        
        oblique fracture