The document discusses the stages of bone growth from ages 1-20, including the diaphysis, epiphyses, pubertal growth spurt, and termination of growth. Key stages are labeled like MP3, C2, C3, and C4 to mark transitions in skeletal maturity as measured by x-rays of the left hand and wrist.

8. DIAPHYSIS
EPIPHYSES

25. 0
20
40
60
80
100
120
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
Thepubertalgrowthspurt
onset
A
PHV
End
Termination

26. MP3
Stage F Stage FG Stage G Stage H Stage I

27. 0
20
40
60
80
100
120
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
Thepubertalgrowthspurt
onset
A
PHV
End
Termination

28. 0
20
40
60
80
100
120
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
Thepubertalgrowthspurt
onset
A
PHV
End
Termination
DP3-I

29. R
R-I
R- IJ
R-J

33. C2
C3
C4C4
C3
C2

34. C2
C3
C4
C2
C3
C4

35. C2
C3
C4C4
C3
C2

36. C2
C2
C3
C3
C4
C4

37. C2
C4
C4
C3
C2
C3

38. C3
C2
C4
C4
C3
C2