Wednesday, July 25, 2012

Cardiovascular physiology XII


  1. How many centimeters of water pressure is equivalent to 1 mm of mercury pressure?
1.36 cm of water

  1. What does PRU stand for?
Peripheral resistance unit

  1. What is the resistance of the entire systemic circulation (total peripheral resistance)?
1 PRU

  1. What is the the total pulmonary vascular resistance value?
0.14 PRU

  1. Name the sound that is heard during a blood pressure determination .
Korotkoff sound

  1. What is the cause of Korotkoff sound?
Turbulence of blood flow

  1. what is pressure in the right atrium also called?
Central venous pressure

  1. What is the value of normal right atrial pressure in atrial diastole?
0 mm Hg

  1. If valves were not to be present in the veins, gravitational pressure would have raised the venous pressure in the feet in a normal standing adult. What is the value to which this pressure would have been raised to?
+90 mm Hg

  1. What is the normal venous pressure in the feet of a walking adult?
+20 mm Hg


(Physiology; UMS 2008)

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