Health And Disease Flashcards
Disease?
A problem with a structure or process in the body that is not due to injury.
Non communicable?
Not infectious, can’t be passed on
Communicable?
Can be passed on, infectious
Causes of scurvy?
Lack of vitamin C, bleeding gums, aching muscles
Causes of rickets?
Lack of vitamin D or calcium makes curvy bones
Anaemia cause?
Lack of iron, tiredness, less and smaller red blood cells
BMI equation?
BMI=mass/height (squared)
Smoking affects?
Damage artery lining, builds fat in artery wall, blood clot may block artery
How to treat cardiovascular disease?
With a stent, which is a mesh tube which holds it open to widen to let more blood through
Virus?
Virus’ aren’t true organisms because they do not have cellular structure. They multiply by infecting a cell.
Carriers of a disease are also called?
Vectors
Example of physical barriers?
Skin
Example of chemical barrier?
Sweat, mucus, tears
Process of lymphocyte attacking a pathogen?
Lymphocytes have antibodies, other cells and viruses have antigens on their surface. When a lymphocyte comes into contact with a pathogen and their antibody fits the antigen it activates the lymphocyte and it multiplies and send out large amounts of antibodies which deactivate the pathogen
What are memory lymphocytes?
Lymphocytes that have attacked a pathogen in the last will now have a much quicker secondary response if the pathogen is in the body again, making you immune to that pathogen
