NUR 339 EXAM 3

NUR 339 EXAM 3
1. What are protooncogenes?
Normal cellular genes that regulate cell prolifera- tion and differentiation that can become
oncogenes
2. What are oncogenes?
Genes that cause cancer
3. What are tumor suppressor genes?
"Anti-oncogenes" that protect cells on path to cancer genes that normally prevent cell division
4. What is carcinogenesis?
When normal cells are transformed into cancer cells
5. What is neoplasia?
Formation or presence of a new, abnormal growth of tissue
6. Describe benign tumors
-Noncancerous
-Cells resemble normal cells
-Doesn't metastasize
-Local effects
-Slow growth
-Limited loss of function and death
7. Describe malignant tumors
-Cancerous
-Do not resemble normal cells
-Metastasizes
-Generalized body effects (not local)
-Fast growth
-Tissue damage and death if not treated

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