Bednárová Z, Malinovský L
Department of Anatomy, Faculty of Medicine, Masaryk University, Brno.
Folia Morphol (Praha). 1990;38(4):382-95.
The authors studied branching of the a. coeliaca (the truncus coeliacomesentericus) in a group of Peruvian short-haired guinea pigs, with special reference to its variability. After the animals had been anaesthetized, their arterial bed was injected with red-dyed latex, fixed and dissected. In all 30 guinea pigs (100%), blood was supplied to the unpaired organs of the abdominal cavity by a truncus coeliacomesentericus arising from the aorta abdominalis at fundus ventriculi level. In 53.3% of the cases, the truncus coeliacomesentericus divided into a truncus gastrolienalis sending out an a. gastrica sinistra and an a. lienalis, and to a truncus hepatomesentericus which split up into an a. hepatica communis and a. mesenterica cranialis. An a. coeliaca (tripus Halleri) was found in only one guinea pig (3.3%), as a branch of the truncus coeliacomesentericus. In the remaining cases, the truncus branched in the most varied ways. The a. gastrica sinistra was most frequently (60%) a branch of the truncus gastrolienalis. In 21 cases (70%) there was a single a. gastrica sinistra and in nine cases (30%) it was doubled. In 29 cases (96.7%) the a. hepatica communis arose from the truncus hepatomesentericus. The classic type of division of the a. hepatica communis to an a. hepatica propria and an a. gastroduodenalis was observed in every case (100%). In 100% of the cases, the a. hepatica propria terminated in a r. dexter and a r. sinister to the liver. An a. cystica, as a direct branch of the a. hepatica propria, was formed in 28 cases (93.3%). In every case (100%) the a. pancreaticoduodenalis cranialis was a branch of the a. gastroduodenalis. An a. gastrica dextra was recorded in only eight cases in the series (26.7%)--in 23.3% as a branch of the a. hepatica propria and in 3.3% as a branch of the a. cystica. Duplication of this artery was found in one case (3.3%). An a. lienalis was found in 28 cases (93.3%), as a direct branch of the truncus gastrolienalis; in two cases (6.7%) it was doubled. An a. gastroepiploica sinistra and a. gastroepiploica dextra were present in 100% of the cases. Inter-organ arterial anastomoses were found in 22 guinea pigs (73.3%)--between the spleen and the stomach (36.7%), between the pancreas and the stomach (10%), between the stomach, spleen and pancreas (10%) and, in the remaining cases, as various combinations of these connections.(ABSTRACT TRUNCATED AT 400 WORDS)
作者研究了一组秘鲁短毛豚鼠腹腔干（肠系膜腹腔干）的分支情况，特别关注其变异性。动物麻醉后，向其动脉床注入红色乳胶，固定并解剖。在所有30只豚鼠（100%）中，腹腔肠系膜干在胃底部水平从腹主动脉发出，为腹腔内不成对器官供血。在53.3%的病例中，腹腔肠系膜干分为胃脾干，发出胃左动脉和脾动脉，以及肝肠系膜干，后者又分为肝总动脉和肠系膜上动脉。仅在1只豚鼠（3.3%）中发现腹腔干（哈勒氏三叉）作为腹腔肠系膜干的分支。在其余病例中，该干以最多样化的方式分支。胃左动脉最常见（60%）是胃脾干的分支。21例（70%）有单一的胃左动脉，9例（30%）为双支。29例（96.7%）肝总动脉发自肝肠系膜干。在每一病例（100%）中均观察到肝总动脉分为肝固有动脉和胃十二指肠动脉的经典分支类型。100%的病例中，肝固有动脉在肝的右侧支和左侧支处终止。28例（93.3%）形成了作为肝固有动脉直接分支的胆囊动脉。每一病例（100%）中，胰十二指肠上动脉是胃十二指肠动脉的分支。该系列中仅8例（26.7%）记录到胃右动脉——23.3%为肝固有动脉的分支，3.3%为胆囊动脉的分支。在1例（3.3%）中发现该动脉有重复。28例（93.3%）发现脾动脉，为胃脾干的直接分支；2例（6.7%）为双支。100%的病例中有胃网膜左动脉和胃网膜右动脉。在22只豚鼠（73.3%）中发现了器官间动脉吻合——脾与胃之间（36.7%）、胰与胃之间（10%）、胃、脾与胰之间（10%），其余病例为这些连接的各种组合。（摘要截于400字）
