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Cancer Presentation. Chapter 2.7. Cell Growth Rates and Cancer. Cancer : A group of diseases that result in uncontrolled cell division. Cell Growth Rate A cancer cell keeps growing despite the nucleus or surrounding cells telling it to stop.
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Cancer Presentation Chapter 2.7
Cell Growth Rates and Cancer • Cancer: A group of diseases that result in uncontrolled cell division. • Cell Growth Rate • A cancer cell keeps growing despite the nucleus or surrounding cells telling it to stop. • The uncontrolled growth of a cell can create a group of cells that form a lump or a tumor. • Tumor: A mass of cells that continue to grow and divide without any obvious functions in the body. • Benign Tumor: A tumor that dose not affect surrounding tissues. • Malignant Tumor: A tumor that interferes with the functioning of surrounding cells; a cancerous tumor. By: loucas, maychelle, kylaannnnnndsaraaa<3
Causes of Cancer • Random changes (mutation) occur in DNA and can kill the cell or duplicate them until nutrients are exhausted • Carcinogens are environmental factors that cause cancer (radiation, tobacco smoke, UV rays, viruses, etc) • Hereditary (DNA is passed fromgeneration to generation) The most common inherited cancer is breast cancer and colon cancer.
Cancer Screening • If your family has a history of cancer, you may choose to go through genetic screening. • Certain types of cancer, such as testicular and breast cancer, can be diagnosed through self examination. • A Pap test is a common screening test. It involves taking a sample of cervical cells to determine if they are growing abnormally. • Other types of screening tests include a blood test to check for colon cancer, and skin checks to look for any abnormal moles or growths.
Reducing Cancer Risk 3 ways to reduce the risk of contracting cancer are: • Eat Healthy (super foods) • Exercise • Vitamins and Minerals • Avoid contact with sick people • Keep toothbrush away from toilet (Phil) • Avoid unhealthy lifestyles • Avoid carcinogens in your environment • Eat a lot of fibre
Diagnosing • If a doctor suspects cancer, he will perform medical tests to further investigate. Tests include blood tests and special imaging techniques • 5 different imaging techniques include: - Endoscopy - Ultrasound -MRI - X Rays - CT or CAT Scan • If any medical tests or images show abnormalities, the next step is to examine a sample of the suspected cancer cells under a microscope. This is the only way to confirm diagnosis of cancer
Treatments for Cancer • The four treatments for cancer are: • Surgery-Physically removing the cancerous tissue • Chemotherapy-using drugs to stop the dividing of cancerous cells throughout the body. It’s ability to shrink cancerous tumors allows it to lead into other treatments such as surgery and radiation therapy. • The radiation is directed at the tumor either by using a focus beam or by implanting a radioactive source into the tumor. • Uses beams of light to detect and treat cancer.
Cancer Education and Research • The CCS (Canadian Cancer society) works to educate people on the lifestyle factors that can lead to cancer and what we can do to prevent/notice it. • Cancer research is expensive and time consuming. (it can take years of work) Every year many cancer researching projects go unfunded. • There are many opportunities to volunteer in your local community to increase cancer awareness.
Homework • Pg. 55 #1-10
