Cardio Vascular system, Heart and Vessels

  • Functions
  • Structure of the heart
  • thresholds of training
  • Drugs
  • Blood components
  • Short term / immediate effects of excercise
  • Long term effects of excercise
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Cardiovascular system, The heart and Vessels

Functions

  • Transport
  • protection
  • Regulate body temperature

Structure of the heart

  • Valves - prevent back flow of blood (X4 = bisupiotincuspid,semi lunar valves)

Blood pressure (increases with ... )

  • Excercise 
  • Diet - high cholestrol/ saturated fat
  • Alcohol/smoking/drugs
  • stress
  • Age
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Thresholds of training and drugs

Thresholds of training

123 ~ 60-80% : Aerobic training zone                                                                        154 ~ 80% + : Anaerobic training zone                                                                       220 - AGE = Max heart rate                                                                                        220- 15 or 16 = ? x 60/100

Drugs

Beta blockers increase blood pressure, decrease heart rate + DEATH                      Anabolic steroids increase blood pressure, increase risk of heart disease                diuretics cause dehydration, increase blood pressure, blood thickens                       stimulants increase heart rate, increase blood pressure + heart problems                Narcotic analgesics - pain killers ; decrease blood pressure                                      Peptide hormones  (EPO) = increase red blood cell count for endurance ( BLOOD DOPING)                                                                                                   

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Bood components

Blood components

1.RED BLOOD CELL - CARRY BLOOD (HEAMOGLOBIN MAKES IT RED)                2. WHITE BLOOD CELL - FIGHT DISEASES                                                              3. PLASMA - TRANSPORTING GLUCOSE (BLOOD 55% GLUCOSE)                        4. PLATLETS - CAUSE CLOTTING

Short term/immediate effects of excercise

  • Blood pressure increases
  • Heart rate increases
  • Stroke volume increases

Long term effects of excercise

  • Stroke volume, Blood pressure and HDLS increased
  • Heart rate increase >60bpm = Bradychrdia
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