<prompt> Not a component of Brain stemMid brainPonsMedullaSpinal cord  <response>: Brainstem1. Medulla:responsible for regulating and or coordination of:- Blood pressure.- Breathing.- Swallowing.- Coughing.- Vomiting.2. Pons : participates in respiratory regulation and the relay of information from cerebral hemispheres to the cerebellum.3. Midbrain : participates in coordination of visual and auditory systems. 