Category A - full version without watermark 720x576 (check terms and conditions at www.teledesign.de) The version with watermark is for free to embed . Description:: The part of the brain dedicated to controlling the cardiovascular system is called the Cardiovascular centre. It is in a part of the brain called the medulla oblongata. It controls the variables: heart rate (HR), stroke volume (SV), and blood vessel diameter. Pressure sensors that measure the stretch in the walls of blood vessels. These sensors are called baroreceptors and they send messages to a part of the brain called the Cardiovascular (CV) centre.