The medulla oblongata is the lower half of the brainstem. In discussions of neurology and similar contexts where no ambiguity will result, it is often referred to as simply the medulla. The medulla contains the cardiac, respiratory, vomiting and vasomotor centers and deals with autonomic, involuntary functions, such as breathing, heart rate and blood pressure. Alternative Names: Medulla Lysate, Human Medulla Tissue Lysate, Brain Tissue, Human Medulla Lysate, Normal Human Medulla Lysate