Anomalies of the left main coronary artery can occur including arising from the right coronary cusp or the pulmonary artery. Congenital absence of the left main is common and a benign finding (the ...

There is a semilunar valve where the aorta leaves the left ventricle and another where the pulmonary artery leaves the right ventricle. Blood vessels leading into and out of the heart There are ...

There is a semilunar valve where the aorta leaves the left ventricle and another where the pulmonary artery leaves the right ventricle. Blood vessels leading into and out of the heart There are ...

X-ray examination of the heart revealed enlargement of the left atrium in 9 subjects and of the right ventricle in 7, and a prominent pulmonary-artery segment in 8. The left ventricle was ...