Cancer Flashcards
1
Q
What is cancer?
A
Highly invasive and destructive neoplasms.
2
Q
What is a neoplasm?
A
Cells formed from irreversible deviant cell division
3
Q
What is a tumour?
A
A collection of cells which have lost control of proliferation and differentiation.
- Benign - localised and closely resembling cells of origin - loss of proliferation
- Malignant - invasive and destructive cells that do not resemble cells of origin. Invades nearby tissues and can metastasise.
4
Q
What causes cancer?
A
Occurs due to unrepaired gene malfunction.
Cancer alters genes that control reproduction, proliferation, differentiation and cell apoptosis.
