SMOKING Causes Lung disease, Heart Disease and Certain Cancers
CONSEQUENCES OF SMOKING
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EFFECTS ON AIR PASSAGES:
Tar Destroys the Cilia (Carries Away Dust and Microbes trapped by Mucus), Causing the Buildup of Mucus and can Cause Bronchitis
Tar contains Carcinogens that Causes Lung cancer
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EFFECTS ON ALVEOLI:
Tar Breaks Down Walls of Alveoli, Causing them to Merge Together. This Creates an Insufficient Surface Area to Volume Ratio, Allowing Less Gas Exchange
Less Gas Exchange Causes Insufficient Oxygen so will Reduce the Efficiency of Gas Exchange, Causing Emphysema where Less Oxygen is Carried in Blood (Making Exercise Difficult)
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EFFECTS ON CIRCULATORY SYSTEM:
Nicotine Narrows Blood Vessels so Will put Strain on Circulatory System and Increase Blood Pressure
Narrow Blood Vessels Causes the Build Up Fat Globes, If this Happens in the Coronary Artery, This Causes Coronary Heart Disease
Blocks Blood to the Heart, Less Oxygen so Less Aerobic Respiration, Causing Anaerobic Respiration which will Produce Lactic Acid, This will create a Low pH environment where Enzymes will Denature and Heart Cells will Die
Carbon Monoxide will Bind Irreversibly to Haemoglobin, Reducing the Capacity of Blood to Carry Oxygen, causing Emphysema
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