Control of salivary secretion Fear reflexes Nausea Sleep Secretion rate depends Tired Dehydration entirely on neural control Higher centers brai both parasympathetic(Ach, M receptor)(water Taste secretion) Salivatory nuclei Chew ing and sympathetIc (na,B srel-7G receptor)(enzyme) SNS (CAMP) PNS(P3) lead to increased Secretion secretion Vasodilation Acinus Duct Cell contraction Metabo|sm↑ Sal vary gland7 Control of salivary secretion Secretion rate depends entirely on neural control both parasympathetic (Ach, M receptor) (water secretion) and sympathetic (NA, β receptor) (enzyme) lead to increased secretion Fear Sleep Tired Dehydration Nausea Secretion Vasodilation Cell contraction Metabolism SNS (cAMP) PNS(IP3)