Superior view of heart valve showing damage caused by rheumatic fever.

Coronary arteries.

Anterior view of the base of the aorta and aortic valve with the coronary arteries.

Transverse section of heart and valve showing damage caused by rheumatic fever.

Anterior view of the base of the aorta and aortic valve with the coronary arteries.

Cross-section of wall shows pathological process of splitting of media layer.

Superior view of the heart with atria removed to illustrate appearance of aortic and pulmonary valves during systole.

Location of dissecting aneurysm of aorta: type 1.

Sternocostal surface of heart and vessels in situ. L. A. D. (left anterior descending branch of left coronary artery).

Superior view of semilunar valve consisting of three crescent shaped cusps that prevent back flow of blood when closed (left).

A simple orientation drawing for a left coronary arteriogram showing the left coronary artery stemming near the aortic valve. Corresponding arteriogram is figure 1. 47D.

Anterior view of the superior mediastinum ribs excised, heart, thymus, aortic arch and vena cava removed to reveal pulmonary arteries.

Cardiac valve, aortic