lumbar splanchnic nerves

例句：

1. 1.The patient was diagnosed with a lumbar splanchnic nerve injury.
   病人被诊断出患有腰椎神经丛损伤。
2. 2.The surgery involved rerouting the lumbar splanchnic nerves to improve blood flow.
   手术涉及重新路由腰椎神经丛以改善血流。
3. 3. The lumbar splanchnic nerves play a crucial role in regulating digestion and absorption of nutrients.
   腰椎神经丛在调节消化和吸收营养物质方面起着至关重要的作用。