This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nervous system, Subject name: Physiology
Not a direct effect of Ach 
Select and explain. 
A. Decrease BP, B. Increase contraction of hea, C. Decrease hea rate, D. Decrease conduction
B: Increase contraction of hea
Answer: B: Increase contraction of hea 
Explanation: Contractility increase is not a direct effect of Ach.Reference: Ganong review of medical physiology 23rd edition Page no: 263