Two specific brainstem systems which regulate the blood pressure.
D000818:Animals; D001794:Blood Pressure; D001933:Brain Stem / Q000502:physiology*; D002415:Cats; D002421:Caudate Nucleus / Q000502:physiology; D007427:Intracranial Pressure; D008526:Medulla Oblongata / Q000502:physiology; D011149:Pons / Q000502:physiology; D011311:Pressoreceptors / Q000502:physiology; D012018:Reflex