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Cardio physiology

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Cardio physiology

  1. 1. Cardiovascular Physiology
  2. 3. Cardiac Performance Terms <ul><li>Pumping </li></ul><ul><ul><li>Preload </li></ul></ul><ul><ul><li>After load </li></ul></ul><ul><ul><li>Contractility </li></ul></ul><ul><li>Oxygen Consumption </li></ul><ul><ul><li>Heart rate </li></ul></ul><ul><ul><li>Blood pressure </li></ul></ul><ul><ul><li>Stroke volume </li></ul></ul><ul><ul><li>Inotropic state </li></ul></ul>
  3. 4. Vasculature Circuits <ul><li>Pulmonary </li></ul><ul><li>Systemic </li></ul><ul><li>Plumbing </li></ul><ul><ul><li>Resistance vessels </li></ul></ul><ul><ul><li>Capacitance vessels </li></ul></ul>
  4. 5. Baroreceptor Reflex <ul><li>Short Term </li></ul><ul><li>SANS & PANS </li></ul><ul><li>Long Term </li></ul><ul><li>SANS & PANS </li></ul>
  5. 6. RAPID Drop in BP (Blood Loss) Live and Personal ! SANS Fires Arterioles (Resistance) Kidneys Renin Angiotensin II Aldosterone Tachycardia Increase contractile force Increase Cardiac Output Increase BP
  6. 7. Renin-Angiotensin-Aldosterone Mechanism Angiotensin I Angiotensin II Vasoconstriction Increased Blood Pressure Renin Released From Kidney Aldosterone Secretion Increase sodium & water retention Increase Blood Volume X X X
  7. 8. Cardiovascular Disease <ul><li>HTN </li></ul><ul><li>Angina </li></ul><ul><li>MI </li></ul><ul><li>CHF </li></ul><ul><li>Arrhythmias </li></ul><ul><li>Bleeding Disorders </li></ul><ul><li>Hyperlipidemia </li></ul>

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