A blockage in which of these vessels would most likely cause a myocardial infarction in the lateral right side of the heart?

Left ventricle

Explanation:

A blockage in the left ventricle will cause a myocardial infarction in the right side of the heart

Right coronary artery.

Explanation:

The coronary arteries are blood vessels that supply blood to the heart.

The heart muscles need a good supply of blood always to function properly, whenever there is an alteration or blockage in the normal blood supply,it poses a problem to the heart. The blood that the heart needs to function properly is supplied by the coronary arteries.

Myocardial infarction in the lateral right side of the heart occurs when there is a narrowing or blockage of the marginal portion of the right coronary artery as a result or arteriosclerosis which is that build up of plague in the inner walls of the coronary artery causing hardening or clogging of the vessel and thus restricting blood flow to the lateral right side of the heart.

Without adequate blood in the lateral right side if the heart,it becomes deprived of oxygen and essential nutrients it need to work adequately,this will now lead to chest/heart pain and further attack or injury to the lateral right side if the heart. (Myocardial infarction)