Julie+19.1+Cancer

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 * Cancer:** is a cellular disease
 * Apoptosis:** cells with damaged DNA undergo a cell death
 * Telomeres:** Chromosomes in human cells end with special repetitive DNA sequences
 * Carcingenesis:** the development of cancer
 * Inititation:** a single cell undergoes a mutation that causes it to begin to divide repeatedly
 * Promotion:** a tumor develops, and the tumor cells continue to divide, as they divide they undergo mutations
 * Progression:** one cell undergoes a selective advantage over the other cells, this process is repeated and a cell invades surrounding tissue
 * Angiogenesis:** formation of new blood vessels
 * metastasis**: is a process when cancer cells are formed in nearby lymph nodes and the cells begin new tumors far from the primary tumor
 * Proto**:oncogenes: code for proteins that promote the cell cycle and prevent apoptosis
 * Tumor:** Suppressor Genes: code for proteins that inhabit the cell cycle and promote apoposis
 * oncogenes:** when Proto-oncogenes mutate, they become cancer causing genes
 * Growth Factor:** a signal that activates a cell signaling pathway, resulting in cell division
 * Oncology:** the study of cancer
 * Oncologist:** medical specialist in cancer
 * Carcinomas:** cancer of epithelial tissus
 * Sarcomas:** cancer in muscles and connective tissue
 * Leukemias:** cancer of the blood
 * Lymphomas:** cancer of lymphatic tissue