FreeMCATPrep Logo

More Than 475 Free MCAT Questions with Detailed Answers!

Click HERE for your Random Question from our MCAT Question A Day Archive

MCAT Question A Day - 6/13/13

During “normal activities,” signals along parasympathetic motor neurons reach the SA node to help coordinate the contractions of the heart. Where do these signals originate?

A.  Cerebrum
B.  Medulla
C.  Cerebellum
D.  Diencephalon