Diseases and health problems / plant tissues Flashcards
coronary heart disease
when the arteries that supply blood to the heart gets blocked by fatty material building up. Cn lead to a lack of oxygen going to the heart. can cause heart attacks.
risk factors of CHD
smoking and high blood pressure, high cholesterol, not enough exercise.
stents
a metal cylinder which can be inserted into an artery to maintain blood flow by keeping the artery open so that the heart continues to receive enough oxygen to function.
statins
drugs that lowers harmful cholesterol in the blood and stop the liver producing too much cholesterol and reduce the rate at which it is deposited.
communicable diseases
these are infectious diseases caused by viruses, bacteria, protists and fungi.
non-communicable diseases
these diseases are not caused by infection and cannot be spread.
Hazard
the potential source of harm
risk factor
the combination of the chances of the hazard causing harm and the severity of that harm.
harm
the damage to health or a disease that can occur.
OBESITY is a risk factor of
type 2 diabetes
ALCOHOL is a risk factor of
liver disease and brain function damage.
SMOKING is a risk factor
lung cancer
Benign tumours
- growth of abnormal cells. -contained in one area. -usually within a membrane surrounding the cells. -they don not invade other organs.
Malignant tumours
-growths of abnormal cells. -these are cancerous. -they invade other tissues and organs. -can be cause by lifestyle or genes.
EPIDERMAL →
covers the surfaces of the plant
