If you are asking about reflexes, the sub-cortical brain controls most of the involuntary activities.
Brain stem (mid brain, pons and medulla), spinal cord have a major role in involuntary activities.
If what type of Involuntary activity is mentioned means the names of the specific sites of the brain can be provided.
The brain stem is the part that controls breathing, it is the stem that allows the respiratory system to work and help you breathe
brain stem
brain stem
medulla
Brain cells
Breathing is controlled by the brainstem, which is located at the base of the brain and is responsible for regulating involuntary functions such as breathing. There is no specific side of the brain that exclusively controls breathing.
Brain stem.
The brain stem controls these functions
The Medulla Oblongata
It is the medulla oblongata that controls swallowing. It also controls functions such as breathing and blood pressure. It is the lower portion of the brainstem.
The part of the brain stem that controls heartbeat and breathing is called the medulla.
The part of the brain that controls heartbeat and breathing is called the medulla oblongata, located in the brainstem. It regulates these vital functions through the autonomic nervous system without conscious effort.