Considerable impetus was given to the study and understanding of cere brovascular anatomy by Thomas Willis and his contemporaries in the seventeenth century, yet almost two hundred years were to pass before further significant advances were made in this field. Then, from the mid nineteenth century onwards, the dark ages of cerebrovascular research gradually lifted through the efforts of such workers as Luschka, Heubner, and Windle, whose pioneering anatomieal studies formed the basis of the present-day understanding of the morphology of the cerebral circulation. The turn of the century saw an...

Considerable impetus was given to the study and understanding of cere brovascular anatomy by Thomas Willis and his contemporaries in the sev,"nteenth century, yet almost two hundred years were to pass before further significant advances were made in this field. Then, from the mid nineteenth century onwards, the dark ages of cerebrovascular research gradually lifted through the efforts of such workers as Luschka, Heubner, and Windle, whose pioneering anatomical studies formed the basis of the present-day understanding of the morphology of the cerebral circulation. The turn of the century saw...

Considerable impetus was given to the study and understanding of cere- brovascular anatomy by Thomas Willis and his contemporaries in the seventeenth century, yet almost two hundred years were to pass before further significant advances were made in this field. Then, from the mid- nineteenth century onwards, the dark ages of cerebrovascular research gradually lifted through the efforts of such workers as Luschka, Heubner, and Windle, whose pioneering anatomical studies formed the basis of the present-day understanding of the morphology of the cerebral circulation. The turn of the century saw...