Which of the following terms is NOT associated with the heart?

The term "saphenous" refers to veins, specifically the great saphenous vein and the small saphenous vein, which are important in the venous system of the leg. While they play a role in the circulatory system by returning blood to the heart, they are not directly associated with the heart's anatomy or function itself.

In contrast, "cordae tendineae" are the fibrous cords that connect the heart's papillary muscles to the tricuspid and mitral valves, playing a critical role in heart function by preventing these valves from inverting during contraction. The "aorta" is the main artery that carries blood from the heart to the rest of the body, and the "septum" refers to the wall that separates the left and right sides of the heart, crucial for maintaining separate circulatory paths for oxygenated and deoxygenated blood. Thus, these three terms are all directly related to the structure and function of the heart, which highlights why "saphenous" is the term that does not fit in this context.