<prompt> Blood pressure is defined as the product of:Systolic pressure x pulseDiastolic pressure x pulse ratePulse pressure x pulse rateCardiac output x peripheral resistance  <response>: D i.e. Peripheral resistance x cardiac output The overall blood flow in circulation of adult at rest is about 5 litermin which equals to cardiac output because it is the amount of blood pumped by hea per unit time. So Blood pressure Cardiac output x peripheral resistanceQ or Blood flow Q x resistance R Venous returnQ MSFP -- RAP MSFP Mean systemic filling pressure Right RAP atrial pressure RVR RVR Resistance to venous return 