Part one of term paper
Brain and spinal cord tu mors are abnormal growths of tissue found inside the skull or the bony spinal column. Tumors are classed as benign (non cancerous) of malignant (cancerous) benign tumors cells are similar to other normal cells, grow slowly and confined to one location. Malignant tumor cells are different from normal cells, grow qu ...

Part two of term paper
... not have to grow very large before it can block blood flow. WHAT CAUSES TUMORS In a small number of individuals, tumors may result from specific genetic diseases,or exposure to radiation or cancer causing chemicals. Smoking, alcohol consumption, and certain dietary habits are associated with some types of cancer, they have not been linked to brain and spinal tumors. The cause of most brain and spinal cord tumors remains a mystery. Scientists do not know exactly why cells in the nervous system ...