作者观测了300付(男170付,女130付)成年人肱骨各径及滋养孔的数目、位置、孔径和开口方向。肱骨各径,男女性之间有高度显著性差异;男性骨比女性骨显著地长而粗。滋养孔的数目,男女性骨都以1孔者为最多(男性67.55%,女性59.69%),其次是2孔的,无孔的仅见3 The authors observed 300 adult men (paid 170, female 130 paid) adult humerus diameter and nourish the hole number, location, aperture and opening direction. There were highly significant differences in humeral diameters and between men and women; male bones were significantly longer and thicker than female bones. Nourish the number of holes, male and female bones are the largest number of 1 hole (male 67.55%, female 59.69%), followed by 2 holes, non-porous only see 3