Module 1E Flashcards
What are drugs?
Substances, both beneficial and harmful, that alter the way the body works.
What does addiction to drugs mean?
You have a physical need for the drug.
What does tolerance to drugs mean?
The body gets used to having the drug so you need a higher dose for the same effect.
What does rehabilitation mean?
A place that offers help and support to help people overcome drug addiction.
Give an example and explain the action of depressants.
Alcohol, Solvents or Temazepam. Depressants bind with the receptor on the membrane of the next neurone blocking any transmission of impulses.
Give an example and explain the action of stimulants.
Nicotine, Ecstasy, Caffeine. They will increase the amount of neurones that cross the synapse.
Give an example of and explain the action of pain killers.
Aspirin and paracetamol. Reduce the number of painful stimuli at nerve endings near an injury.
Give an example and explain the action of performance enhancers.
Anabolic steroids. They help build muscle.
Give and example and explain the action of hallucinogens.
LSD. They distort what is seen and heard.
What is the problem with smoking?
Tobacco smoke produces nicotine, carbon monoxide and tar.
What is the issue with carbon monoxide in cigarettes?
Causes heart disease. Binds with the carrier protein haemoglobin which reduces the oxygen-carrying capacity of the red blood cells,
What is the problem with tar in cigarettes?
Can cause lung, throat, mouth and oesophageal cancer. Tar collects on the lungs and has dangerous chemicals in it called carcinogens that make mutations in the DNA.
How is smokers cough and emphysema developed?
Smoking damages the cilia on the epithelial tissue lining the trachea, bronchi and bronchioles which encourages mucus to be produced. The excess mucus, however, can not be cleared because the cilia are damaged.Instead it sticks to air passages.
Emphysema is caused as the lungs loose their elasticity.
Is a women who smokes more likely to have a high birth weight baby, or a low birth weight baby. Why?
Low birth weight baby. Low oxygen in the blood of the mother can deprive the foetus of oxygen.
What are the short term effects of alcohol?
Impaired judgement.
Blurred vision.
Slurred speeech.
Increased blood flow to the skin.
