Male reproductive system. 19th century artwork of a section through the male lower abdomen. At bottom is the coccyx (tail bone), with the rectum, the last part of the bowel above it. Above the rectum are the seminal vesicles (grey) and the bladder (oval). At the base of the bladder is the prostate gland (white). The ureter runs from the bladder to the end of the penis (pink, top right). Below the penis is a testicle. This anatomical artwork is plate 58 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).