health, disease and the development of medicine Flashcards
name one organ that is affected by drinking too much alcohol
liver
give 2 risk factors for obesity
cardiovascular disease
diabetes
what causes malnutrition
having a diet with too many or too few nutrients
T or F? antibiotics are used to treat viruses
false antibiotics only work on bacteria
what does it mean when patients are given a placebo
a substance that looks like a real drug but doesn’t do anything
give one reason why a drug is tested on healthy volunteers during clinical testing
to make sure the drug has no harmful side effects when the body is working normally
immunisation involves injecting pathogens into the body. why don’t these pathogens cause disease?
the pathogens are dead or inactive
what are memory lymphocytes
type of white blood cell produced in response to the antigens of pathogens
what chemical that killls bacteria is found in tears
lysozyme
which proteins on the surface of pathogens trigger an immune response
antigens
what is the role of the skin in protecting the body from pathogens
physical barrier
prevents from entering body
how does the stomach help to defend against pathogens
produces hydrochloric acid which kills most pathogens
how to cells in the trachea and bronchi protect the airway
produce mucus
have cilia which moves mucus up to back of throat
describe the role of antibodies in the immune systems response to a pathogen
antibodies bind to the pathogen so it can be found and destroyed by white blood cells
T or F? chlamydia is caused by bacterium
true
