At what age iliac crest is fused in a girl

A. 17-18 yrs
B. 18-19 yrs
C. 19-21 yrs
D. 21-23 yrs.

Answer: B. 18-19 yrs.


Explanation:

• Secondary ossification centre for Iliac crest appears at the age of 14 years

                                                                                fuses at the age of 20-21 years.

Note: Skeletal development in the female can be in advance of the male up to one year.
          So, the answer is 18-19 yrs.

                                    
                              Appearance of secondary ossification centre in Iliac crest.
                                   


                                  
                                                            Fused iliac crest.