北京白癜风治疗费用多少 http://pf.39.net/bdfyy/dbfzl/一、右冠状动脉:自右冠状动脉窦发出,沿右房室沟走行,达到(84%)或不达到(12%)后十字交叉。其可分为:
1.后降支:posteriordescendingbranchesPD
2.左室后支:posteriorbranchesofleftventricularPL
3.锐缘支:rightmarginalbranchAM
4.右圆锥支:rightcorusarteryCA
5.右室前支:rightanteriorventricularbranches
6.右房动脉:rightatrialartery
二、左冠状动脉:发自左冠状窦,分出两大分支,分别为左前降支(leftanteriordescendingbranch,LAD)和左回旋支(leftcircumflexbranch,LCX);左前降支沿室间沟下行,供应室间隔、左室壁及部分右室壁;左回旋支沿左房室沟走行,84%不能达到后十字交叉,16%达到后十字交叉。其主要分支如下:
1.左主干:leftmaincoronaryarteryLM
2.前降支:leftanteriordescendingbranchLAD
3.对角支
iagonalbranches
4.左室前支:leftanteriorventricularbranches
5.右室前支:rightanteriorventricularbranches
6.前间隔支:anteriorseptalartery
7.左圆锥支:leftcorusartery
8.左回旋支:leftcircumflexbranchLCX
9.钝缘支
btusemarginalbranchOM
10.左室前支:leftanteriorventricularbranches
11.左室后支:leftposteriorventricularbranches
12.左房支:leftanticularbranches
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