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16 Cards in this Set

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effects of nicotine
1. stimulates brain-make smokers feel alert

2. release adrenaline-increased heart rate and blood pressure

3. blood clot- can lead to heart attack if in cornary arteries or stroke if in the brain capillaries.
effects of carbon monoxide
1. reduce efficiency of red blood cells transporting oxygen

2.fatty substances deposited on the inner walls of arteries

3. damage lining of blood vessels-blood clot, block blood vessels
effects of tar
1. induces epitheliem or membrane of the air sacs to divide at an abnormal rate(carcinogenic)

2. paralyses the cilia lining the air passages
-prevents removal of dust particles from the lungs and trachea
irritants include:
hydrogen cyanide and acrolein
effects of irritants
paralyses the cilia in the air passages and weaken the walls of the alveoli

2. cause cells lining the air passages to produce mucus
-coughing bursts the weakened walls of hte alveoli, causing a decrease in wall area
-gaseous exchange greatly reduced.
effects of nicotine
1. stimulates brain-make smokers feel alert

2. release adrenaline-increased heart rate and blood pressure

3. blood clot- can lead to heart attack if in cornary arteries or stroke if in the brain capillaries.
effects of carbon monoxide
1. reduce efficiency of red blood cells transporting oxygen

2.fatty substances deposited on the inner walls of arteries

3. damage lining of blood vessels-blood clot, block blood vessels
effects of tar
1. induces epitheliem or membrane of the air sacs to divide at an abnormal rate(carcinogenic)

2. paralyses teh cilia ling the air passages
-prevents removal of dust particles from the lungs and trachea
irritants include:
hydrogen cyanide and acrolein
effects of irritants
paralyses the cilia in the air passages and weaken the walls of the alveoli

2. cause cells lining the air passages to produce mucus
-coughing bursts the weakened walls of hte alveoli, causing a decrease in wall area
-gaseous exchange greatly reduced.
chronic bronchitis
-epithelium or membrane lining the inner surface of the bronchi or main air passages to the lungs become inflamed and narrowed.
-excessive mucus secreted >breathing difficulties
emphysema (cause by irritants)
partition walls between the alveoli break down because of intense coughing, enlarging air spaces and decreasing the surface area of the lung
>reduce absorption of oxygen
medicinal drugs
1. antibiotics
2. anaesthetics
3. analgesics
socially-accepted drugs
1. caffeine
2. alcohol
alcohol
can be abusedif consumed inexcessive amounts

-depressant
>affect nervous system(cause intoxication)
>affects digestive system (cause gastric ulcers or cirrhosis of the liver)
drug abuse
stimulants, hallucinogenic, depressant,opiates