This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Physiology
Effect of parasympathetic stimulation on saliva production is 
Select and explain. 
A. Causes high volume, thick viscous secretion, B. Causes small volume, watery secretion, C. Causes high volume, watery secretion, D. Causes small volume, thick viscous secretion
C: Causes high volume, watery secretion
Answer: C: Causes high volume, watery secretion 
Explanation: Regulation of saliva production :

Parasympathetic ⇒ High volume, watery enzyme rich secretion.
Sympathetic ⇒ small volume,.thick viscous mucus  secretion.