aorta dorsalis造句

• The ductus carotis arteriosus and ductus botalli are still present and link up the arterial arches separately . there are two aa . gastrica , one coming from aorta dorsalis directed branch , the other coming from a . gastrolinealis which branch of aa
  2 .动脉系统：颈动脉导管、波氏导管依然存在；胃动脉有两个来源：背主动脉的直接分支，肠系膜动脉的胃脾分支；肝动脉为来自腹腔肠系膜动脉的一级分支。