摘要
目的 了解人体前列腺外侧神经血管束的具体走行和分布。 方法 采用手术显微镜,对成年男性尸体前列腺外侧神经血管束进行解剖观察,同时采用组织切片神经性一氧化氮合酶(nNOS)免疫组织化学染色方法,对 1具成年男尸标本前列腺外侧神经血管束进行染色分析。结果 盆丛发出分支与血管一起构成神经血管束,分成两支沿前列腺后外侧和前外侧走行到达尿生殖膈。前列腺后外侧、前外侧神经血管束与尿生殖膈组成三角区,三角区中央可见前列腺包膜,该区无神经血管覆盖。后外侧和前外侧神经血管束中的神经穿过尿生殖膈上筋膜后,在截石位膜部尿道外会合成一支。前列腺外侧神经血管束nNOS免疫组织化学染色,前列腺后外侧和前外侧神经血管束中均存在大量nNOS神经元细胞体和神经纤维。 结论 前列腺外侧存在 2条神经血管束,分别为前外侧和后外侧神经血管束,包含nNOS染色阳性神经节细胞。
Objective To investigate the position and distribution of the neurovascular bundle at the lateral border of the prostate in adult male. Methods The neurovascular bundle at the lateral border of the prostate was observed on the remaining 25 sides of the medially dissected 18 male formalin-preserved cadavers with an operative microscope.The neurovascular bundle at the lateral border of the prostate of an adult male cadaver was explored with hematoxylin and eosin staining and nitric oxide synthase (nNOS) immunohistochemistry staining. Results The neurovascular bundle,which stemed from the pelvic plexus,together with the corresponding vessels were formed and divided into 2 branches to pass the lateral border of the prostate.One of them traveled between the posterolateral prostate and anterolateral rectum.The other traveled between the bladder neck and the prostate to reach the lateral border of the puboprostatic ligament.After 2 nerve branches of the neurovascular bundles pierced the urogenital diaphragm, they met together to form a nerve bundle again.Two bundles and the urogenital diaphragm formed a triangle area at the lateral border of the prostate.There was no nerve and vessel in this triangle area.The nerve branches at the lateral border of the prostate contained nerve cell bodies and fibers that stained positive for nitric oxide synthase. Conclusions There are 2 neurovascular bundles at the lateral border of the prostate.One of them travels between the posterolateral prostate and anterolateral rectum.The other travels between the bladder neck and the prostate to reach the lateral border of the puboprostatic ligament.They contain nerve ganglia that stain positive for nitric oxide synthase.
出处
《中华泌尿外科杂志》
CAS
CSCD
北大核心
2005年第3期192-194,共3页
Chinese Journal of Urology
基金
国家自然科学基金资助项目(30170939)
