Question

which part of our brain controls involuntary actions ?

Answer 1

 The brain stem controls the involuntary movement of the Circulatory, Respiratory, and Digestive Systems. 

Actually the medulla oblongata controls vital involuntary movement. 

The medulla oblongata is the part of the brain stem that controls vital involuntary movement. (like breathing and digestion)

Answer 2

medulla oblongata is the part of our brain controls involuntary actions