If it involves the renal artery and limits blood flowing to the kidneys, it triggers more renin.

如果累及肾动脉并且限制了肾脏的血流，它就会引发更多肾素的释放。

The surgeon carefully sutures the pig kidney's blood vessels to the deceased person's renal artery and vein.

外科医生小心地将猪肾的血管与死者的肾动脉、肾静脉缝合。