29.1 MB (2.2 MB compressed)
2968 x 3422 pixels
25.1 x 29.0 cm ⏐ 9.9 x 11.4 in (300dpi)
SCIENCE PHOTO LIBRARY SCIENCE PHOTO LIBRARY
Illustration of the blood supply to the brain by Christopher Wren, taken from the book Cerebri Anatome 1664, by Thomas Willis (1621-1675). The picture shows the arrangement of blood vessels at the base of the brain known as "the circle of Willis".
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