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目的：为临床尺管综合征和尺神经卡压、尺神经损伤的诊治提供解剖学依据。方法：在３０只成人手标本上解剖并观察了尺管的结构、尺神经的分支与走行。结果：依据尺神经在腕部和手掌的行程，将其分为豆钩管段、小鱼际段、掌中段、终末段。结论：尺神经深支在尺管内与豌豆骨、钩骨钩、豆钩韧带的关系密切。临床上骨折、韧带断裂、外伤都有可能引起神经损伤，产生尺神经卡压，出现尺管综合征。
OBJECTIVE: To provide anatomical basis for the diagnosis and treatment of ulnar nerve injury in clinical ulnar ulnar nerve ulnar syndrome. Methods: The structure of ulnar canal, branch and ulnar nerve were dissected and observed in 30 adult hand specimens. Results: According to the ulnar nerve in the wrist and the palm of the trip, it will be divided into beans hook section, small fish section, palm middle section, terminal section. Conclusion: The deep branch of ulnar nerve is closely related to pea bone, hook bone hook and hook bean ligament in ulnar tube. Clinical fractures, ligament rupture, trauma may cause nerve damage, resulting ulnar nerve compression, ulnar syndrome.