图示：正常心脏
心外膜光滑有光泽，存在一些脂肪是正常的。左冠状动脉前降支从主动脉根部发出。
This is the external appearance of a normal heart.The epicardial surface is smooth and glistening.The amount of epicardial fat is usual.The left anterior descending coronary artery extends down from the aortic root to the apex.