Why injury to medulla oblongata leads to death?

The medulla oblongata is the part of the hind brain and located in the brain stem. It is extended to the spinal cord. Through pons, it is connected to the midbrain. It is the controlling centre for heart and lung. It regulates involuntary movements such as breathing, respiration, circulation, the function of blood vessels etc. Thus, injury to medulla oblongata leads to death.