Respuesta :
Involuntary and the brain, because the stem controls involuntary reactions
Answer:
Involuntary, brain
Explanation:
Involuntary functions are not within our control such as heart beat, digestion of food, breathing and more. Â
All involuntary actions are controlled by the medulla oblongata which is located in the brain stem. Â
On the other hand all voluntary actions performed by the skeletal muscle is controlled by the somatic nervous system.