Exam 1 Blueprint NUR2392 Section GRB-P Multidimensional Care II-Module 1 Tumor 1. Define (associate the 9 characteristics/features of each) Benign: • Specific morphology – resemble the tissues they originated from • A smaller nuclear-to-cytoplasmic ratio – similar to normal cells • Specific differentiated function – contributes to the body function • Tight adherence - bind closely together due to the production of fibronectin • No migration – do not invade other tissues • Orderly growth – rate of growth is normal by expansion • Euploidy – normal chromosomes per cell Malignant tumor: • Anaplasia – loss of appearance of parent cell • A larger nuclear-to-cytoplasmic ratio – larger nucleus • Specific functions are lost – serve no purpose • Loose adherence – loosely bound due to the lack of fibronectin production • Migration – spread easily (metastasize) • Contact inhibition does not occur – loss of cellular regulation • Rapid or continuous cell division – loss of cellular regulation • Aneuploidy – Abnormal chromosomes 2. What elements influence the growth of a cancer tumor? • Exposure to the carcinogens (tobacco, radiation, chemotherapy, hormone drugs, pollution) • Genetic predisposition • Immunity 3. List and describe the steps of the Carcinogenesis: 1. Initiation – normal cells become damaged which is irreversible and leads to cancer development 2. Promotion – repeat exposure enhances cell growth which leads to mutation 3. Progression – increase in the production of malignant cells 4. Metastasis – movement of cells from the primary site 4. What step in carcinogenesis is irreversible? - Initiation 5. Describe the origin of the following cancers (where in the body) • Leukemias and lymphomas – Leukemias arise from organs that form blood and invade the production of the normal blood cells. Lymphomas affect the lymphocytes, which fight infections and produce enlarged lymph nodes in the armpits, chest, abdomen, and groin. • Carcinomas – originate in the epithelial cells of the skin, lungs, liver, kidneys, stomach, breast, prostate, and thyroid and are likely to metastasize • Sarcomas – originate in soft tissues such as the muscles, blood vessels, bone, and connective tissues. 6. Signs of cancer. Describe each letter in the acronym • Change in bowel or bladder habits • A sore that does not heal • White patches in the mouth or tongue • Unusual bleeding or discharge • Thickening or lump in the breast or other location • Indigestion or difficulty swallowing • Obvious change in a wart or mole • Nagging cough or hoarseness 7. Define a. Primary Tumor: The original tumor is called the primary tumor. It is usually identified by the tissue from which it arose (parent tissue) such as in breast cancer or lung cancer. When primary tumors are located in vital organs such as the brain or lungs, they can grow and either lethally damage the vital organ or interfere with that organ's ability to perform its vital function. b. Metastasis: Metastasis occurs when cancer cells move from the primary location by breaking off from the original group and establishing remote colonies.