chest与thorax怎么区别？

Here, by the way, surgeons should be warned not to close the wound if the chest has been perforated except when the thorax is contracted to the utmost; for, otherwise, if the opening made by the wound is closed when the chest cavity is expanded it will be impossible for the chest to contract on account of the resistance of the air inside, or for the lungs to expand, except partially, and, in consequence, suffocation will occur.

这里，顺便提醒外科医师，若chest穿孔，除非thorax已萎陷至最大，否则不要关闭伤口；因为，chest cavity扩张时伤口已关闭，则chest 因内部空气的阻力不能收缩，肺也不能扩张（部分扩张除外），就会发生窒息。

chest与thorax怎么区别？

这里感觉“ thorax”是不是直接翻译成“肺”？“chest”是不是直接翻译成“胸廓”？