2. A perichondrium should be found on.......
 
A. tracheal cartilage ring Correct, good job
B. articular cartilage A perichondrium does not cover the free surface of cartilage, such as joint cartilages and it does not cover cartilage indrect contact with bone
C. fibrocartilage A perichondrium does not surround the fibrocartilage
D. cartilage of mixed specules Mixed specules are coverd with bone
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