1. Cancer Mitosis Gone Wild! Tan = Sexy, and Risking Death

2. Tan = Sexy?

4. Naomi

5. Tumor ZMeans “swelling” ZCome to refer to abnormal growth of tissue. ZTwo types of tumors: ZBenign ZMalignant

6. Benign ZMeans “not life threatening” ZDo not invade other tissues. ZDo not break apart and spread to other parts of the body (metastasize) ZCan grow really big and become a serious health problem, possibly life threatening.

7. Premalignant ZBenign tumors are at greater risk for turning into “cancer” than other tissue. ZIf they start to “degenerate” then they are called premalignant.

8. Malignant ZCells dedifferentiate – lose specializations like cilia and axons. ZMetastasize ZBreak away from tumor move through blood stream to other parts of the body ZDivide and grow into another cancerous tumor.

9. Cancer ZTesticle Cells in you Lungs! ZBreast Tissue in your Brain!

10. Contact Inhibition ZCell to cell contact usually stops cell division, not with cancerous cells.

11. Oncogenes ZGenes control cell division – produce checkpoint proteins. ZMutations can cause cells to go through mitosis too often = tumor.

12. Growth Factor Z Tumor cells either are missing growth factor inhibition or make their own growth factor proteins.

13. Carcinogens Z Physical Z UV Z Heat Z Chemical Z Bind with DNA Z Biological Z Viruses