Superior clunial nerves(L1-L3) Lateral cutaneous branch (iliohypogastric nerve [iliopubic nerve)) Middle clunial nerves(S1-S3) Gluteal fold Lateral cutaneous nerve of thigh of thigh [posterior femoral cutaneous nerve] s [lateral femoral cutaneous nerve 皮肤skin 浅层结构浅筋膜 superficial fascia 皮神经 cutaneous nerve皮 肤 skin 浅筋膜 superficial fascia 皮神经 cutaneous nerve 浅层结构