Ossification center
（重定向自Center of ossification）
![](/Images/godic/202501/03/Gray790124.png")
The first step in ossification of the cartilage is that the cartilage cells, at the point where ossification is commencing and which is termed an ossification center, enlarge and arrange themselves in rows.
The matrix in which they are imbedded increases in quantity, so that the cells become further separated from each other.