<prompt> Costochondral joint is an example ofFibrous jointPrimary cailaginous jointSecondary cailaginous jointSynol joint  <response>: Primary Cailaginous joint The bones are united by a plate of hyaline cailage so that the joint is immovable and strong These joints are tempory in nature because after a ceain age the cailaginous plate is repalced by bone synostosis Ref :BD CHAURASIA S Handbook of General Anatomy Fouh edition Page no 63 