题目：
简述学前儿童骨骼的特点。
答案：
参考答案：
（1）骨膜比较厚；
（2）全是红骨髓；
（3）有机物多、无机盐少，柔韧性大而强度低，容易弯曲变形
（4）骨在不断生长，骨化未完成
（5）关节灵活性好，牢固性差
简述学前儿童骨骼的特点。
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