Are you aware of what the pons and the medulla are? These are known to be parts that can be seen in the brain. The pons is located in between the midbrain and the medulla oblongata. This is responsible for sending signals to the brain coming from the cerebrum going to the medulla.
The medulla, also known as medulla oblongata, is responsible for the things that we do not have to consciously do such as breathing, digesting the food that we eat, and so much more. This will make sure that the respiratory and the circulatory systems of the body are working properly. The sensory and motor neurons may also travel through the medulla.