Final answer:
The "vital centers" (the cardiac, respiratory, and vasomotor centers) are located in the medulla oblongata of the brain. These centers regulate blood pressure and flow and respond to changes in blood pressure and blood concentrations of oxygen, carbon dioxide, and hydrogen ions.
Step-by-step explanation:
The "vital centers" (the cardiac, respiratory, and vasomotor centers) are located in the medulla oblongata of the brain. The cardiovascular centers in the medulla oblongata regulate blood pressure and flow. These centers respond to changes in blood pressure and blood concentrations of oxygen, carbon dioxide, and hydrogen ions.
The cardiovascular centers consist of three distinct paired components: the cardiac accelerator nerves, the vasomotor nerves, and the respiratory centers.