Muscles, deep dissection. Dissection of the mouth, mandible divided and reflected to show palate and tongue. Male figure, in vivo, anterior view.
http://link.library.utoronto.ca/anatomia/application/digobject.cfm?PlateNum=RBAI003-0014&book_id=RBAI003&plate_id=0014&size=0&query=Muscles.&browsetype=Title&startrow=1