The CV System

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  • The CV System
    • 3 parts
      • Blood vessels
        • capillaries
          • gas exchange
          • arteries
            • takes blood away from the heart
        • veins
          • brings blood to the heart
      • blood
      • heart
    • short term adaptions
      • adrenaline makes heart beat faster
      • increase heart rate
        • heart beats increase more per minute
      • increase stroke volume
        • more blood pumped out per beat
      • cardiac output increases
        • more blood per minute HR X SV
      • increases vascular shunting
        • non essential body parts close down
    • long term adaptions due to training
      • blood vessels get quicker
      • continues
      • cardiac hypertrophy
      • long interval
      • lower resting heart rate
      • quicker recovery to resting heart rate
      • increase resting stroke volume
      • low blood pressure
    • blood pressure
      • diastolic
        • when the heart relaxes
      • systolic
        • heart contracting
    • heart health
      • poor diet
        • drugs
        • high cholesterol
        • lack of exercise

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