lumbar arteries

例句：

1. 1. The lumbar arteries are responsible for supplyingblood to the lower back and legs.
   腰椎动脉负责向腰部和腿部输送血液。
2. 2.During surgery, the surgeon must carefully controlthe lumbar arteries to preventbleeding.
   在手术过程中，外科医生必须小心控制腰椎动脉以防止出血。
3. 3. Athletes often experience pain in their lowerback due to the pressure on thelumbar arteries during intense exercise.
   运动员在剧烈运动时经常感到下背部疼痛，这是因为腰椎动脉受到压力。