By the time you were just seven weeks old and only about an inch [2.5 cm] long, early forms of all 206 of your adult bones were in place, although they had not yet ossified, or turned into hard bone.
Долоон долоо хоногтой, 2,5 сантиметр урттай урагт хүний биед байх ёстой 206 яс бэхжээгүй хэр нь бүгд бий болчихсон байдаг.