chapter 42 Cardiovascular system

  1. period of rest, blood is returned to the heart by veins
  2. period of contraction or systole, blood is pumped out of the heart.
  3. factors that may affect the cardiac rate and rhythm.
    • Drugs
    • Acidosis
    • Decreased oxygen levels
    • Changes in the electrolytes in the area
    • Buildup of waste products
  4. A faster than normal heart rate (over 100 BPM) with a normal ECG pattern is called sinus tachycardia.
    A slower than normal heart rate (less than 60 BPM) with a normal ECG is called sinus bradycardia.
    Sinus arrhythmias
  5. Arrhythmias that originate above the ventricles but not in the SA node. ECG will have an abnormally shaped P wave.
    Supraventricular arrhythmias
  6. Also called heart block, reflects a slowing or lack of conduction at the AV node.
    Atrioventricular block
  7. Impulses that originate below the AV node originate from ectopic foci (a shift in the pacemaker of the heart from the SA node to some other site) that do not use the normal conduction pathways.
    Ventricular arrhythmias
  8. The right side of the heart sends blood to the lungs, where carbon dioxide and some waste products are removed from the blood and oxygen is picked up by the red blood cells.
    Pulmonary circulation
  9. The left side of the heart sends oxygenated blood out to all of the cells in the body.
    systemic circulation
  10. Systolic-diastolic
    Pulse pressure
  11. causes edema in the lungs.
    Left sided heart failure
  12. causes edema in the peripheral, abdominal and  liver
    right sided heart failure
  13. pulling pressure of the large vascular proteins on the venous end of the capillary.
    Oncotic pressure
  14. on the arterial end.
    hydrostatic fluid pressure
Card Set
chapter 42 Cardiovascular system
cardio system