Those differences could be explained by the fact that it was not taken into consideration the fact that the subclavian artery is called axillary artery when it crosses the external surface of the first rib .
Tales diferencias pueden deberse al hecho de no haber tenido en cuenta que, en realidad la arteria subclavia pasa a ser designada arteria axilar cuando rebasa el lado externo de la primera costilla .
Tais diferenças podem dever-se ao fato de não se ter considerado que, em verdade, a artéria subclávia passa a ser designada artéria axilar quando ultrapassa a face externa da primeira costela .