Sentence:  One growth center in a short bone - distal phalanx of the second finger - was chosen as an example for discussion here , primarily because epiphyseal diaphyseal fusion , the maturity indicator for Completion in long and short bones , occurs in this center for girls near the menarche and for boys near their comparable <WSD>pubescent</WSD> stage . 
Meaning of the word marked with <WSD> tags:  (of animals especially human beings) having arrived at the onset of puberty (the age at which sex glands become functional) but not yet fully mature