After maxillary protraction and mandibular retraction with occipito - mental anchorage ( oma ) appliance on first stage , the patient was successfully treated with fixed orthodontic appliance with modified multiple loop edgewise archwire ( meaw ) and asymmetric elastics 本病例报告为一12岁女孩，主诉下颚前突及偏斜，经第一阶段以功能性颚骨矫正将上颚拉出及抑制下颚骨生长；第二阶段使用全口固定式矫正装置，以改良式meaw在3 ~ 4个月内改善齿列正中线，以及修正偏斜的下颚。
Methods of 14 normal male japanese white rabbits ( aged approximately 4 months ) , 7 ( randomly chosen ) were subjected to vasal ligation near the cauda epididymidis after exposure of the testis and vas deferens via a scrotal incision , and the other 7 subjected to vasectomy after exposure of the vas in the inguinal canal through a small ventral midline incision 方法正常雄性日本大耳白兔14只（约4月龄） ， 7只（随机选择）经阴囊切口暴露睾丸和输精管后靠近附睾尾进行输精管结扎，另7只从耻骨联合上方的腹正中线上作一小切口，暴露腹股沟管内的输精管后进行输精管结扎。
Pancreaticoduodenalis v . mesenterica and a . gastrolinealis join together and then enter the right liver ; v . gastrica anterior v . oesophagea join together and then enter the left liver v . abdominalis enter the liver by the ortho - axis of liver the characteristic of histology about the heart and blood vessels : cardiac muscle cells are not linked by the structure of intercalated discs ; the endothelium of blood vessels is simple columnar epithelium 3 .静脉系统：后腔静脉与后主静脉同时存在，肾门静脉系统与后腔静脉之间没有交通支，输卵管静脉汇入肾门静脉，肝门静脉分三处入肝：胰十二指肠静脉、肠系膜静脉和胃脾静脉三者汇合后进入右肝，胃前静脉和食管静脉汇合后进入左肝背面，腹静脉从肝脏腹面正中线入肝。
