Head and neck muscles. Historical anatomical artwork of the muscles of the human head and neck, seen from the front. The specimen has been dissected to the level of the superficial muscles, with the plantysma (muscle covering, grey) left in place at lower right. Artwork from the 19th- century book Atlas of Anatomy, by Bourgery and Jacob. This book, which took over 20 years to complete, was published in France in 8 volumes from 1831 to 1854. It contained 726 colour plates covering both anatomy and surgical techniques.