Disease Flashcards
What is health
Health is a state of conplete physical, mental and social well-being. It is not just the absence of disease or infirmity
Communicable diseases
These are infectious diseases caused by viruses,bacteria, protists,pathogens and are spread in animals e.g. malaria, measles
Non communicable disease
These diseases are not caused by infection and cannot be spread e.g. heart disease, diabetes
Pathogens
These are microorganisms that cause infectious diseases. They may infect plants or animals and can be spread by direct contact, water or air. They depend on the host to provide suitable conditions and nutrients that they need to grow and reproduce. Pathogens can be bacteria, viruses,fungi or protists.
Viral diseases
Viruses may produce rpaidly and viruses live and reproduce inside cells causing damage
Bacterial diseases
Bacteria may reproduce rapidly and produce toxins that damage tissues and make us feel ill.
Examples of viral diseases
Measles
HIV
Examples of bacterial diseases
Salmonella
Gonorrhoea
Diabetes type 1
When you have type one diabetes, your body attacks the insulin producing cells in the pancreas so that it cant be produced. This is bad as without insulin, the glucose your body gets from food cannot get into the bodies cells and fuel your body. More and more glucose builds up in your bloodstream.
Diabetes type 2
When you have type 2 diabetes, the insulin your pancreas creates isnt enough or doesnt work properly. Without this proper function, your bodys cell cannot receive the glucose and be fuelled. With built up glucose levels, The body may continue the production of insulin which may tire out the pancreas and lead to even higher blood glucose levels.
Ash dieback
Ash dieback is caused by a fungus that affects the water transport system of trees. It is spread by the movement of diseased parts from infected trees
