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What is cancer? What are three main types of cancer? |
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Answer» Cancer starts in our cells. Cells are tiny building blocks that make up the body’s organs and tissues. Cells receive signals from the body, telling them when to grow and when to divide to make new cells. This is how our bodies grow and heal. These cells can become old, damaged or no longer needed. When this happens, the cell gets a signal from the body to stop working and die. Types of cancer: Carcinoma – cancer that begins in the skin or in tissues that line or cover internal organs. There are different subtypes, including adenocarcinoma, basal cell carcinoma, squamous cell carcinoma and transitional cell carcinoma. Sarcoma – cancer that begins in the connective or supportive tissues such as bone, cartilage, fat, muscle or blood vessels. Leukaemia – cancer that starts in blood forming tissue such as the bone marrow and causes abnormal blood cells to be produced and go into the blood. |
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