[Curvature of the human sacrum based on morphometric data]

As demonstrate measurements of 57 human sacrums, 40 of them have either complete or partial sacralization, mainly at the expense of the first coccygeal vertebra. Simultaneously, it has been revealed that in the sacrums studied certain increase of the sacral kyphosis is observed. The pick of the sacral flexure in the masculine pelvis is at the level of the II sacral vertebra, that of the feminine pelvis--at the level of the I sacral vertebra.