Historical diagram of the heart. Fig. 1: The root of the trunk of the Aorta; Fig. 2: The heart of a boy about 1 years old; Fig. 3: The trunk of the Aorta of an adult man. From "The anatomy of human bodies epitomized. Wherein all the parts of mans body with their actions and uses, are succinctly described, according to the newest doctrine of the most accurate and learned modern anatomists." Thomas Gibson, 173.
