D208三医大 W Chen Systematic divides of the upper limb: bones, Joints, skeletal muscles, arteries, veins, lymphs and nerves The upper limb is specialized for mobility or stability2008 三医大WJ Chen 5 Systematic divides of the upper limb: bones， joints， skeletal muscles，arteries， veins， lymphs and nerves The upper limb is specialized for mobility or stability？