B7 Non-communicable Diseases Flashcards
What are benign tumours?
Growths of abnormal cells that are contained in one area, usually within a membrane, and do not invade other tissues.
What is a cancer?
The common name for a malignant tumour, formed as a result of changes in cells that lead to uncontrolled growth and division.
What are carcinogens?
Agents that cause cancer or significantly increase the risk of developing cancer.
What is a causal mechanism?
Something that explains how one factor influences another.
What is a correlation?
An apparent link or relationship between two factors.
What is ionising radiation?
Radiation that has enough energy to cause ionisation in the materials it passes through, which in turn can make them biologically active and may result in mutation and cancer.
What is a malignant tumour?
These tumours invade neighbouring tissues and spread to different parts of the body in the blood where they form secondary tumours. They are also known as cancers.
What is a tumour?
A mass of abnormally growing cells that forms when the cells do not respond to the normal mechanisms that control growth and when control of the cell cycle is lost.
