Causes and cures Flashcards
why did the renaissance start
cultural movement in late 1900
wealthy bussiness men paid scholars and artists to investigate the writings of ancient greek and romans
Made them critical as they searched for the best versions of old texts
educated people wanted to find out more for themselves and not just accept what church said
how did renaissance spread
printing press in 1451 - new ideas spread quickly
art- human body in realistic terms
new inventions- such as gun powder caused new types of wounds
what did doctors believe in before Vesalius
doctors had believed Galen had given correct description of anatomy and dissections had been carried out prove he was right
church supported him and few doctors wanted to oppose him
hippocrates
ancient greek theory of illness which involved the equal balance of
bood(bloodletting or eating and drinking red wine/ meat) phlegm- breath in steam or eat fresh veg
black bile- given laxatives or eat veg
yellow bile- made to vomit or change diet
galen
ideas based on Hippocrates observation and the four humours
imbalance treated by use of opposites
eg fever- eating cold food n keep cool
knowledge not correct as based on animal dissection
wrote many books = bases many medieval doctors
treating sick in medieval
barber surgeons- blood letting
wise men/ women- gave first aid and herbal remedies supernatural
trained doctors in large towns- used hippocratic and galenic methods= controlled by christian church
medieval treatments
natural- christian church approved of Ancient Greek and romans and Galen - believed in one god
so doctors used - clinical observation= checking urine and pulse
four humours
supernatural- many diseases Hippocrates colder cure supernatural came in - position of stars and recommended prayer
how did Christianity affect medieval medicine
church believed in looking after sick- Jesus healed the sick
church approved of Ancient Greek and romans- taught in universities
church believed god sent illness as a punishment so curing illness going against gods will
prayers important than treatment
church believed in - miraculous healing = sick encouraged to visit shrines and pray to saint to cure them
hospitals funded by the church
church arrested 13th century English monk who suggested doctors do original research and not trust old books
hospitals concentrated on caring for the sick not curing and more priests than doctors
what was the Black Death
1348-1350
combination bubonic and pneumonic plague
bubonic- spread by fleas found on persons groin or neck or armpits = lumps oozed n when opened = fever n vomit
pneumonic - infected lungs=fever n cough= spread by victim blood/cough
what did people think caused the Black Death
position of stars and plants
bad air
wells poisoned by jews=led to many attacks against jewish communities
punishment from god - god punish for sins and only god anger produce so many deaths
real causes of Black Death
bacteria yersina pestis- stomach of fleas that lived on blood of rats n when rats died fleas on rats blood find new host = humans
food shortages= poor were malnourished and vulnerable to infection
why did the disease spread so quickly
Street cleaning poor
Animals dug up quickly- for victims bodies
Dirty streets encouraged rats to breed
Quarantine not effective on infected villages
Unhygienic habits - throwing litter, disposal bodies n no protective clothing
Laws about cleanliness hard to enforce
Ignorance of germs and causes of disease widespread
how did people try and deal with the Black Death
authorities had no idea what caused the plague - some laws but little enforcement
no medical knowledge existed so people:
Prayer
Unusual remedies such as drinking mercury or shaving a chicken and strapping it to the buboes
Moving away from towns n villages if knew plague coming
Avoiding contact with people who might’ve been infected = quarantine infected
PUMA
impact of Black Death
social- villages wiped out
in England1/3 of the population died and older age groups most affected
political- demands for higher wages = peasants revolt 1381 harder for peasants to pay tax to king- weakening of feudal system
Statue of labourers- 1381- stop peasants moving around countryside looking for work
Religious- damage to Catholic Church - experienced priests died other had to run away
survivors believed god had specially protected them BUT opinions of church changed churchmen critiqued for cowardice running away
Economic- created food shortages so the price of foofd increased creating more difficulties for the poor = inflammation
landowners = sheep farming as needed few workers which increased food shortages
farm workers demanded higher wages and were less willing to be tied to land and work for feudal landlord = peasants move village to village work for desperate landlords
Vesalius discovery
found some of lanes discoveries were wrong as based on animal not human dissection- own dissections
provided proof of galenas mistakes=breastbone in human has 3 parts not 7 like an ape
wrote very illustrated and accurate book based on dissections and observations of human body = explained how different system in the body works such as Skelton , nerves n digestion etc- FABRIC HUMAN BODY
impact / significance of Vesalius discovery
criticised for challenging Galen and had to leave his job in Padua and later became doctor for emperor
1545- Thomas geminus- copied all of Vesalius illustrations and put them in manual for barber surgeons = compendiosa- 3 editions 1545-59- inspired English surgeons
through investigation and publication shared new knowledge to the world using printing press
overturned centuries of belief that galens study of the anatomy was correct
transformed anatomical knowledge
basis for treatments in the future - showed other how to do proper dissections and famous anatomists filled his approach
before Harvey
Galen said new blood was constantly made in the liver and buried as a fuel in the body
16th century - Columbo discovered that blood moved along the veins and arteries and
Fabricus- proved that valves and in veins
Harvey read what these anatomists had discovered and built on their work - his own theories contradicted Galen
Harveys discovery
built up his own knowledge of the heart through dissections of human and animal hearts= pumped blood wrong way proving only goes one way
calculated mathematically how much blood would have to be produced if a fuel
understood how muscles worked- cold blooded animals
BLOOD CIRCULATED AROUND THE BODY
what didn’t Harvey know
Harvey waited 12 years to publish - de motu corgis 1628 about the circulation of blood because:
didn’t know why blood circulated
why different colours in veins and arteries
how blood from arteries- veins
scared of criticism get for challenging Galen
impact of Harvey
critics said he was mad and ignored his ideas
some doctors rejected this theory- contradict Galen and didn’t believe his calculations
HOWEVER
was accepted by many doctors
four years after Harvey died- microscope made to see veins and arteries connected
transfusions not happen till 1901 - blood groups
Todays understanding of the blood and it’s circulations is significant as it allows us to quickly test and diagnose illness, carry out advanced surgery
took 50 years before uni of Paris taught to medical students
what us the great plague and when
1655 returned in an epidemic of black death and killed about 100,000 in London (quarter of population)