Health of Human Respiratory System (2)

Example of substances that are harmful to the human respiratory system (2)

Carbon monoxide

Example of substances that are harmful to the human respiratory system (3)

Sulphur dioxide

Example of substances that are harmful to the human respiratory system (4)

Nitrogen dioxide

Example of substances that are harmful to the human respiratory system (5)

Haze, dust and pollen

Cigarette tar

Is one of the toxic substances found in cigarette smoke

The effect of cigarette tar on the human respiratory system (1)

Cigarette tar in inhaled air sticks to and kills cells in the air passage such as the thorax, pharynx, epiglottis, larynx, bronchi, bronchioles and alveoli

The effect of cigarette tar on the human respiratory system (2)

Cigarette tar also increases the production of mucus and phlegm in the lungs

Examples of substances in cigarette smoke that can cause lung cancer

Cigarette tar

Harmful substances found in cigarette smoke (1)

Cadmium (Alkaline battery)

Harmful substances found in cigarette smoke (2)

Stearic acid (Candle)

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Health of Human Respiratory System (2)

Health of Human Respiratory System (2)