After the aorta leaves the left ventricle it rises towards the neck, but soon turns downwards, making a curve known as the arch of the aorta.

Continue to lay open the ventricle towards the pulmonary artery until the semilunar valves come into view.

A, superficial fibers common to both ventricles; B, fibers of the left ventricle; C, deep fibers passing upwards toward the base of the heart; D, fibers penetrating the left ventricle ]

Oftentimes it degenerates into epilepsy, apoplexy, convulsions, and blindness: by the authority of Hippocrates and Galen, all aver, if once it possess the ventricles of the brain, Frambesarius, and Salust.