Abdominal anatomy. 19th century artwork of a section through the abdomen. The liver (dark brown) is at top and left. At left is the gallbladder (yellow). At right are the diaphragm (brown) and the spleen (purple). At centre is the aorta (red), the body's main artery. To its left are the portal vein (blue) and the vena cava (dark pink), the body's main vein. Above it is the oesophagus (gullet, pink). This anatomical artwork is plate 36 from volume 5 (1839) of 'Traite complet de l'anatomie de l'homme' (1831-1854). This 8-volume anatomy atlas was produced by the French physician and anatomist Jean-Baptiste Marc Bourgery (1797-1849). The illustrations were by Nicolas-Henri Jacob (1781-1871).