Physio Exam II Flashcards.txt

Card Set Information

Physio Exam II Flashcards.txt
2010-02-27 06:58:09
Physio Exam II

Physio Exam II
Show Answers:

  1. How do you determine cardiac output?
    CO= SV (Stroke volume) x HR (Heart Rate)
  2. Name the locations that blood flows through starting at the Vena Cava
    • Vena Cava
    • Right Atrium
    • Tricuspid Valve
    • Right Ventricle
    • Pulmonic Valve
    • Pulmonary Artery
    • Lungs
    • Pulmonary Vein
    • Left Atrium
    • Bicuspid/Mitral Valve
    • Left Ventricle
    • Aortic Valve
    • Aorta
    • Arteries, arterioles, capillaries
    • Venules, veins
  3. Arteriole blood is responsible for what?
    Blood Pressure
  4. Venous blood is stressed or unstressed?
  5. Define systolic pressure:
    Maximum pressure from left ventricular contraction
  6. Define diastolic pressure:
    Pressure created by elastic recoil of the aorta (ventricle relaxation and blood filling)
  7. Pulse pressure:
    (Difference btw. systolic and diastolic)
  8. Blood Pressure:
    Systolic/Diastolic Canine avg. 133/76
  9. Mean arteriole pressure:
    Diastolic pressure + 1/3 pulse pressure
  10. ANP?
    Artrial Natriuretic Peptide Hormone the gives up sodium to the urine in an effort to decrease blood pressure. Where sodium goes, water will follow which decreases blood volume= decrease in blood pressure. *ANP prevents blood volume overload in the right atrium
  11. Systemic Circuit Components:
    • Pressure circuit
    • left heart, arteries, veins
    • blood to body
  12. Pulmonary Circuit Components:
    • Volume circuit
    • low pressure
    • right heart, pulmonary arteries, capillaries, veins
    • blood to lungs
  13. Stroke volume:
    the amount of blood leaving the ventricle with each heart beat
  14. T/F Venous return directly affects cardiac output
  15. What is preload?
    End Diastolic Volume. The blood volume in the ventricle after diastole
  16. What is End systolic volume?
    The blood volume in the ventricle after a contraction
  17. What is Afterload?
    Heart pumping against a pressure in the aorta.
  18. Frank Starling Law?