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2 - Growth & Development - Dent462 - Coggle Diagram

- - - - Embryonic period = 0 - 8 weeks
        
        Gastrulation
        
        Bilaminar disc becomes trilaminar disc
        
        epiblast & hypoblast forms mesoderm,endoderm,ectoderm
        
        Neurulation
        
        neural crest cells form
        
        forms the branchial arches
        
        multipotent
        
        neural tube
        
        somites
        
        Branchial Arches
        
        frontonasal prcess
        
        forms the medial aspect of the nose, the maxillary anterior teeth and anterior palate
        
        maxillary processes
        
        forms the maxilla, posterior palate and rest of the maxillary teeth
        
        mandibular process
        
        merge to form lower jaw
      - Foetal Period = 9 weeks - birth
    - - growth centre
        
        any growth area which is internally controlled
      - growth site
        
        any area of growth
      - mode
        
        types of bone formation
        
        endocondral
        
        calcification of cartilage
        
        intramembranous
        
        bone forms on FCT