You are watching Christina Aguilera on MTV Cribs.As she walks through her backyard,she trips over a rake,falls to the ground,and gets all dirty.You laugh uncontrollably and cannot help but smile for the next few minutes.In this situation,the ____ motor system is controlling your facial expressions.

Question

Quizplus · Accepted Answer

The extrapyramidal motor system is responsible for involuntary reflexes and movements, including the control of facial expressions that occur in response to emotions such as laughter.

You Are Watching Christina Aguilera on MTV Cribs