Slide 1

MH: 42 44 N:48 - 54 Cancer: Cell Division Gone Wrong

Slide 2

What is cancer? Cells have genes that control when they undergo mitosis If one of these genes is damaged (mutated) a cell will undergo mitosis uncontrollably, forming a tumour There are 2 types of tumours: 1. Benign 2. Malignant (cancer)

Slide 3

Tumours (neoplasms)

Slide 4

Benign tumours Benign tumours cannot invade neighbouring tissues and therefore are NOT cancerous

Slide 5

Malignant tumours (cancer) Malignant tumours ARE cancerous because they can invade neighbouring tissues Malignant tumours may metastasize if cells break away from the tumour and lead to the formation of tumours elsewhere in the body

Slide 6

Possible causes of cancer Abnormal cell growth my be caused by a variety of sources Heredity Carcinogens Carcinogen an agent directly involved in causing cancer eg. radiation overexposure, smoking, certain viral infections

Slide 7

Cancer Treatment There are 3 main routes of cancer treatment: 1. Surgery 2. Radiation 3. Chemotherapy There is NO magic bullet cure Prevention is EVERYTHING

Slide 8

Slide 9

Questions N: 55, #2, 3, 5 8 & 10 MH: 45, #1, 3 6 (full sentences)