Intestinal vascular anatomy, 1866 illustration. The arteries (red) and veins (blue) supplying the intestines form a structure called the mesentery. Parts of the small intestine (bottom) and large intestine (top) are shown here, with the caecum at centre left. This page is plate 20 from the third volume of 'Atlas d'anatomie descriptive du corps humain' (1844-1866) by French anatomists Constantin Bonamy and Paul Broca. This work described the anatomy of the human body with over 250 hand-coloured lithographs. The illustrations were by Emile Beau, with the text by Bonamy and Broca. The three volumes were bound as four books in 1866 when the atlas was completed. This page is from the third book 'Digestion', a republication of the section on the digestive system that was first published in 1850.