pe revision: short term effects

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  • Short term effects
    • Muscular
      • Body temperature rises
      • Lactic Acid
        • Muscles tire faster and the body rapidly consumes energy
        • when our muscles begin to tire and slow down, there is an increase chance of a build up
        • Can lead to cramp
      • Increase in work rate uses more oxygen
      • Muscles and heart start to work harder
      • Muscles become more toned and stronger through regular exercise
    • Circulatory
      • circulates blood through our body
        • Heart, blood and blood vessels
      • Our muscles require more oxygen when we begin to exercise
        • The heart then has to start working faster
        • The heart rate increases to pump blood faster
      • Before exercising, our heart rate creeps up
        • The body is preparing us and we are going to be working harder
      • Cardiac output
        • The volume of blood pumped by the heart in one minute
        • Blood flow also increaases
    • Respiratory
      • The lungs are the main organs of the respiratory system
        • Other parts include the trachea, diaphragm and the bronchi
      • Respiration means breathng
      • The main job is to supply the blood with oxygen in order for the blood to deliver oxygen to all parts of the body
      • When we breathe, we inhale which is breathing in oxygen and exhaling carbon dioxide


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