Stomach lining. 19th century artwork of a section through the mucous lining of the stomach. The upper layer is the glandular mucosa, which has gastric pits (brown) where the gastric glands open to the digestive lumen (top). Beneath this is the submucosa, which contains blood vessels, lymph vessels and nerves. This anatomical artwork is plate 24 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).