Then the arterile eminted intertubular capillaries and peritubular capillaries forming rope-ladder-like pattems . then the venule were collected and became testis veins, then mass into rete venosum, finally some venule formed pampiniform plexus and others entered into varicosity . 3 . changes or testicular microvascular architecture : testicular capillary vessel formed intertubular capillaries and peritubular capillaries . but donot formed rope-ladder-like patterns capillary net in postnatal 3 weeks . there were rope-ladder-like patterns capillary nets around seminiferous tubules in postnatal 3 and 12 months 微血管构筑的增龄变化:3周龄组睾丸动脉在实质内已形成了管周微动脉和管间微静脉,但绳梯状的毛细血管网尚未形成;3月龄组与12月龄组微血管构筑呈中文摘要现定的构烈特点,在生精小管周围形成绳梯状的毛细血管网:18月与24月龄组苹丸萎缩,微而管构筑变得不很规则。