The Sensory systems of the Peripheral nervous system (P.N.S) Auditory (heard and Buzzed tonal noise adjustments). g. Maltase - breakdown of grains It also involves; Gustatory (taste), Olfaction (smell) but, b. Protease - collective breakdown of protein d. Amylase - breakdown of starch What happens when you are protease deficient? Vision ((direct and indirect) (more on this soon), e. Lactase - breakdown of dairy foods c. Cellulase - breakdown of fiber http://biology.about.com/od/organsystems/a/aa032907a_2.htm f. Sucrase - breakdown of sugars