Which MI is associated with left coronary artery occlusion?

The correct answer identifies that both lateral and anterior myocardial infarctions (MIs) are typically associated with occlusion of the left coronary artery. The left coronary artery supplies a significant portion of the heart's muscle, including the anterior wall and the lateral wall of the left ventricle.

In the case of an anterior MI, it usually occurs due to the blockage of the left anterior descending artery, a branch of the left coronary artery. This blockage can compromise blood flow and result in damage to the heart tissue supplied by this artery.

For a lateral MI, the obstruction typically affects blood flow through the left circumflex artery, another branch of the left coronary artery. Damage can occur to the lateral part of the left ventricle, which can also lead to significant consequences, including changes in heart rhythm and overall cardiac function.

By recognizing that both types of MI can occur with left coronary occlusions, this option encompasses the broader impact of coronary artery disease affecting both lateral and anterior heart walls.