家猪右冠状动脉解剖学观测

目的探讨家猪心脏右冠状动脉的解剖结构,丰富动物实验资料。方法取新鲜家猪心脏46例,用过氯乙烯-乙酸乙酯填充剂灌注冠状动脉,其中40例经1.75 mol.L-1甲醛固定,手工剥制显示右冠状动脉,观察和测量右冠状动脉及其分支;6例经酸腐蚀制作动脉血管铸型,观察冠状动脉的吻合情况及血供范围。结果家猪冠状动脉分为左、右冠状动脉,右冠状动脉较左冠状动脉细小且较浅表,分支有心房支、心室支、窦房结支、房室结支及后室间支等。后室间支多止于后室间沟的上1/3。结论猪心右冠状动脉与人心右冠状动脉有一定的相似性。

Anatomical observation of right coronary artery of pig heart

Objective To observe the anatomical structure of the right coronary artery of pig heart and to enrich the data of experimental animals.Methods The coronary artery of forty-six pig hearts were perfused with perchloroethylene-acetoacetate.Then forty cases of them were fixed by 1.75 mol·L-1 formaldehyde,right coronary artery was displayed by hand-made stuffing and its branch was observed.Other 6 cases were made into the arterial casting mould after the acid corrosion,the coincidence and the scope of blood supply of coronary artery were observed.Results The coronary artery in pig heart included left coronary artery and right coronary artery.The right coronary artery was tinier and more shallow than the left coronary artery.It had the branches of atrium branch,ventricular branch,branch of sinuatrial node,branch of atrioventricular node,posterior interventricular branch and so on.Most of the posterior intervintricular branch stoped at 1/3 of the posterior intervintricular groove.Conclusion The right coronary artery in pig heart is similar to that of human.