Two hearts, one being rotated by a hand
1970
From the collection of Leiden University Libraries
1970
From the collection of Leiden University Libraries
This drawing shows two human hearts side by side. One heart is cut open to reveal its inside, while the other is whole. A hand is turning the whole heart to show its back, with thick blood vessels branching off the top. The artist used shading to make the textures look real. The veins and muscle fibers are drawn carefully to show how they twist and connect. Look up cross-hatching to see how artists create depth with lines.
