cancer Flashcards
(11 cards)
Cancer:
the result of changes in cells that lead to uncontrolled growth an division
Lifestyle risk factors for cancer:
-smoking (lung, mouth, bowel, stomach and cervical cancer)
-obesity (bowel, liver and kidney cancer)
no exercise
-exposure to carcinogens
-UV light/radiation (skin cancer)
-alcohol
Genetic risk factors for cancer:
you can inherit certain genes which increase the likelihood of getting cancer
Benign tumours:
-caused by uncontrolled cell division
-growths of abnormal cells which are contained in one area usually within a membrane, they do not invade other parts of the body (other tissues)
-not cancerous
-grows until there is no more room
-if it causes pressure or damage to an organ it can be dangerous
Malignant tumours:
-caused by uncontrolled cell divison
-malignant tumour cells are cancers, they invade neighbouring tissues and spread to different parts of the body via the blood (circulatory system) where they form secondary tumours
cancerous.
-the tumour may split up, resulting in cells being carried in the bloodstream or lymphatic system
-cancer cells divide more rapidly and have a longer life span in comparison to normal cells
Metastasis:
the spreading of a disease (e.g. cancer) to other parts of the body by metastasis
How has cancer survival in the UK changed?
cancer survival has doubled in the last 40 yrs in the UK
How many people in their lifetime will develop some form of cancer?
more than1 in 3 people will develops some form of cancer during their lifetime
What are the two types of skin cancer?
-melanoma
-non-melanoma
Non-melanoma skin cancer:
Non-melanoma skin cancer:
Melanoma skin cancer:
type of skin cancer that can spread to other organs in the body