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***Via cartilaginous precursor:
 
***Via cartilaginous precursor:
 
****Mesenchyme condenses to form bone outline
 
****Mesenchyme condenses to form bone outline
****Core cells differentiate to chondroycytes and begin secreting cartilage matrix
+
****Core cells differentiate to chondrocytes and begin secreting cartilage matrix
 
****Peripheral condensation forms perichondrium
 
****Peripheral condensation forms perichondrium
 
****Interstitial (length) and Appositional (width) growth
 
****Interstitial (length) and Appositional (width) growth
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