Cardiovascular System Intro

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Cardiovascular System Intro
2015-02-15 18:30:36
Cardiovascular System
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  1. Primary cause of cardiovascular related deaths
    Myocardial Infarction (Heart Attack)
  2. 4 major determinants of myocardial oxygen demand
    • 1-HR
    • 2-Contractile force
    • 3- Muscle Mass
    • 4- Ventricular wall tension
  3. What is Tissue Hypoxia
    When tissue is deprived of Oxygen
  4. How does blood flow within the heart?
    Down a pressure gradient
  5. Define regurgitation
    When blood flows backwards because the valves did not close properly
  6. Define stenosis
    calcium build up blocks blood flow in the heart
  7. Define Vascular Tone
    degree of constriction of blood vessel relative to its maximally dilated state
  8. Define microvessel
    monitor how much blood tissue needs and controls local blood flow
  9. What occurs when the arterial pressure falls below normal?
    • increase in HR
    • increase in force of contraction
    • increase in constriction of arterioles
  10. What are arterioles?
    small vessels that branch off the artery
  11. What occurs if the arterial pressure rises above normal?
    • reflex slowing of the heart
    • decrease force on contraction
    • vasodilation
  12. What are the two types of risk factors?
    • Modifiable risks
    • nonmodifiable risks
  13. What are some modifiable risk factors for cardiovascular disease?
    • elevated serum lipid levels
    • hypertension
    • smoking
    • diabetes II
    • sedentary lifestyle¬†
    • stress
    • obesity
    • excessive intake of saturated fats, carbs and salt
  14. What are some Nonmodifiable risk factors?
    • Age¬†
    • Male
    • Family history
    • Race
  15. What are the listed Cardiovascular Disorders?
    • Abdominal aortic aneurysm
    • Cardiac Tamponade
    • Cardiogenic shock
    • Coronary artery disease
    • dilated Cardiomyopathy
    • Rheumetic fever
    • Heart failure
    • Hypertension
    • Hypertrophic Cardiomyopathy
    • MI
    • Pericarditis
    • Takotsubo cardiomyopathy