雀鹰冠状动脉的铸型观察

为了阐明雀鹰心脏的血供，用血管铸型和组织透明方法观察了雀鹰心脏左、右冠状动脉的分支分布情况，结果表明，雀鹰心脏左冠状动脉分为前降支和旋支，前降支又依次支出动脉圆锥支、左缘支和前室间隔支，左缘支分支分布于左室侧壁，前室间隔支分布于室间隔前1／2部，前降支主干分支分布于左心室前壁，旋支分布于左心的左缘壁和隔壁及右心室隔壁的部分，右冠状动脉沿途分出后室间隔支和右室前支，其主干延续为右室后支，后室间隔支分布于室间隔后1／2部，右室前支分布于右心室前壁及心右缘壁，右室后支分布于右心室的隔壁。

Observation on the coronary arteries casting of Accipiter nisus

In order to investigate the blood supply features of the heart of the Accipiter nisus ,the branches and distribution of the coronary arteries of the Accipiter nisus are obserred by arterial vascular casting and tissue transparance method.The results show that the heart of the Accipiter nisus is supplied by left and right coronary arteries. The left coronary artery of the Accipiter nisus divided into anterior descending branch and circumflex branch.The anterior descending branch gives off arterial cone,left fringe and anterior interventricular septum branches in proper order. The left fringe branch gives off branches to supply the lateral wall of the left ventricle.The anterior of the interventricular septum is supp1ied by anterior interventricular septum branch that originates from the anterior descending branch of the left coronary artery.The main trunk of the anterior descending branch distributes to anterior wall of the left ventricle.The circumflex branch gives off branches to the left atrium,lateral and diaphragm wall of the 1eft ventricle and parts of the right ventricle. The right coronary artery of the Accipiter nisus gives off the posterior interventricular septum branch and the anterior branch of right ventricle.The posterior branch of the right ventricle is an extension of the right coronary artery.The anterior branch of the right ventricle gives off branches to supply the anterior and below fringe walls of the right ventricle.The posterior branch of the right ventricle distributes to the diaphragm wall of the right ventricle.The posterior interventricular septum branch gives off branches to the posterior of the interventricular septum.