In ninety percent of individuals the RCA then goes on to supply the inferior surface of the ventricles through a branch called the posterior descending artery.

对于90%的个体，RCA通过称为后降支的分支供应心室下表面。

As the inferior surface of the heart is supplied by the RCA in 90% of people, this ECG pattern usually indicates obstruction of the artery.

由于90%的人的心脏下表面由RCA供血，这种心电图模式通常表明动脉阻塞。

Blockage of the RCA distal to the origin of the marginal branch, in facts, the inferior surface of the heart, this inferior surface is examined by leads II III and aVF.

RCA远端至边缘分支起源处阻塞，即心脏下表面，下表面由II-III和aVF导联检测。