The ultrastructure of chondrocytes from epiphyseal plate and meniscal fibrochondrocytes in passage 2 and 4 were respectively different.

• 第2代骺板软骨细胞与第2代半月板软骨细胞以及第4代骺板软骨细胞与第4代半月板软骨细胞都有不同的细胞超微结构。