Difference between primary and secondary cartilaginous joint
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Cartilaginous joints : articular surfaces of two bones are connected by cartilage.
Theses joints are formed by only hyaline cartilage or both hyaline and fibrocartilage.
Primary cartilaginous joint | Secondary cartilaginous joint |
It is also known as Synchondroses | it is also known as symphysis |
articular surfaces are connected by hyaline cartilage | articular surfaces are covered by thin plates of hyaline cartilage which is separated by fibro-cartilage. |
It is a temporary joint | It is a permanent joint |
Hyaline cartilage of joint is converted into bone | thin hyaline cartilage and fibrocartilage are not converted into bone |
they are not located in the median plane | they are usually located in the median plane |
It allows no movement | It allows little movement |
they make very strong joint Exmple: costochondral joint | they make relatively strong joint example : menubriosternal join |
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