名词
中文翻译：腰椎分支
同义词：
['lumbar artery', 'lumbar vein']
例句：
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1.The lumbar branch of the sciatic nerve is responsible for pain in the lower back.
坐骨神经的腰段负责下背部的疼痛。
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2. During surgery, the surgeon must carefully dissect the lumbar branch to avoid damaging it.
在手术中，外科医生必须小心地解剖腰段分支以避免损伤它。
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3. The patient was diagnosed with a lumbar branch block, which required immediate treatment.
患者被诊断出有腰段阻滞，需要立即治疗。