QuestionSBA
QuestionChoice
This supplies the right atrium and the right ventricle.
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e
Right coronary artery
QuestionChoice
This supplies part of the right ventricle, the left ventricle and the interventricular septum.
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a
Left anterior descending artery
QuestionChoice
This supplies the right ventricle and apex of the heart.
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d
Right marginal artery
QuestionChoice
This supplies the left atrium and part of the left ventricle, but it does not supply the interventricular septum.
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b
Left circumflex artery
QuestionChoice
This only supplies the left ventricle, so would not explain the ischaemia of the interventricular septum.
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c
Left marginal artery
Concept
Chapter
2693
3792
Coronary blood flow
Topic
159
Cardiovascular physiology
13876
An ECG shows an anteroseptal infarction suggestive of ischaemia to the left ventricle and the interventricular septum.

Which coronary artery has most likely been affected by the infarction?
a