Mrs. f. visited her physician for a routine physical. during the exam, she explained that over the last two weeks, she had been feeling much more tired than normal and occasionally felt short of breath. knowing that women usually present with atypical symptoms of a heart attack, her physician ran some diagnostic tests and found that ms. f. was indeed having a heart attack. imaging studies showed that ms. f. had blockages in both her right marginal artery and her anterior interventricular artery. what parts of the heart would be affected by these blockages?