Welcomed! CHI St. ius Health Devils Lake Hospital welcomed a beautiful Rock-Falls baby girl as the first baby born in the New Year! Chapter Sensory Systems Chapter Sensory Systems THE EAR. MarcelAndré Boillat. tomy . The ear is the sensory organ responsible for hearing and the maintenance of equilibrium, via. Marblehead Community Connection Here is the latest version of the Marblehead, MA business directory.