Smoking and the risk of disease

Question 1

why is carbon monoxide bad

Answer 1

• after smoking, 10% of the blood will be carrying carbon monoxide
• poisonous gas found in tobacco smoke and takes up some of the oxygen- carrying capacity of your blood

Question 2

why is smoking during pregnancy bad

Answer 2

• she is carrying oxygen for herself and the baby
• if she is carrying carbon monoxide, the foetus may not get enough oxygen and therefore it may not grow properly
• can lead to premature births, stilbirths

Question 3

what is bronchitis

Answer 3

• cilia are damaged
• globules cells produce more excess mucus reducing gas exchange

Question 4

what causes COPD

Question 5

why does smoking cause a risk of infection

Answer 5

• cilia in the trachea and bronchi that move mucus bacteria and dirt away from lungs are anaesthetised by some of the chemicals in tobacco smoke
• they stop working for a time allowing dirt and pathogens down into the lungs and increasing the risk of infections

Question 6

the build up of tar in the delicate lung tissue can lead to what

Answer 6

• breakdown of the structure of the alveoli causing chronic obstructive pulmonary disease (COPD)
• this reduce SA:V of lungs leading to severe breathlessness and eventually death

Question 7

how does smoking increase the chances of a stroke

Answer 7

• increases cholestral which causes the thickening of artery walls and increase chances of a stroke

Question 8

how does smoking affect the heart

Answer 8

• smoking narrows the blood vessels in your skin
• nicotine makes the heart beat faster whilst other chemicals damage the line of the arteries
• this makes CHD more likely
• increases the risk of clot formation
• also increases blood pressure
• combination affects increases the risk of suffering cardiovascular disease include heart attacks and strokes