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Cancer medically called a malignant neoplasm, is a term for a large group of different diseases. Cancers create malignant tumors, cells that divide and grow uncontrollably and invade nearby parts of the body. The cancer may also spread to more distant parts of the body through the lymphatic system or bloodstream. Not all tumors are cancerous. Benign tumors do not grow uncontrollably, do not invade neighbouring tissues, and do not spread through the body.
Healthy cells control their own growth and will destroy themselves if they become unhealthy. Cell division is a complex process that is normally tightly regulated. Cancer happens when problems in the genes in a cell prevent these controls from working. These problems with genes may be from damage to the gene or may be inherited. Damage to genes can come from many sources inside or outside of the cell. Two types of inherited genes are especially important: oncogenes that increase the risk of cancer and tumor suppressor genes that prevent cancer but can be damaged.
============Healthy cells control their own growth and will destroy themselves if they become unhealthy. Cell division is a complex process that is normally tightly regulated. Cancer happens when problems in the genes in a cell prevent these controls from working. These problems with genes may be from damage to the gene or may be inherited. Damage to genes can come from many sources inside or outside of the cell. Two types of inherited genes are especially important: oncogenes that increase the risk of cancer and tumor suppressor genes that prevent cancer but can be damaged.
3D Medical Animation - What is Cancer?
How cancer develops
Cancer Growth Animation
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