What Percentage of Body Mass is Bone? | LIVESTRONG.COM Your body weight expresses your total mass with little regard to its composition. ... According to “Advanced Human Nutrition,” a lean man is theoretically made up ...
骨骼_百度百科 骨骼由各种不同的形状组成，有复杂的内在和外在结构，使骨骼在减轻重量的同时 能够保持坚硬。 ... 人体的骨骼起着支撑身体的作用，是人体运动系统的一部分。
