<prompt> Effect of parasympathetic stimulation on saliva production isCauses high volume, thick viscous secretionCauses small volume, watery secretionCauses high volume, watery secretionCauses small volume, thick viscous secretion  <response>: Regulation of saliva production :Parasympathetic High volume, watery enzyme rich secretion.Sympathetic small volume,.thick viscous mucus secretion. 