B7 - Non-communicable diseases Flashcards
1
Q
B7 - Describe the characteristics of a benign tumour.
A
Non-cancerous
Contained in one place.
Do not invade other parts of the body.
Can grow very large, very quickly.
Can cause pressure or damage to an organ
Dangerous in the brain because there is no extra space for them to grow.
2
Q
B7 - Describe the characteristics of a malignant tumour.
A
Cancerous.
Can spread around the body, invading neighbouring healthy tissues.
The initial tumour can be split up and enter the bloodstream or lymphatic system.
Secondary tumours can form.
Very difficult to treat.
3
Q
B7 - What is a carcinogen?
A
A chemical that is capable of causing cancer.
E.g. Tar in cigarette smoke.
