cancer

• describe cancer

  uncontrolled cell growth and division as a result of changes in cells causing development of tumours
• give types of tumours

  benign and malignant
• describe benign tumours

  non dangerous or cancerous tumour that stays in one place
• describe malignant tumours

  dangerous and cancerous tumours that spread to healthy tissue forming secondary tumours
• give risk factors to cancer

  smoking, obesity, radiation, viral infection and gentics
• give cancer affected by smoking

  lung, mouth and stomach
• give cancers affected by radiation

  skin
• give cancer affected by obesity

  liver, kidney and bowel
• give cancer affected by viral infection

  cervical (hiv) and liver (hepatitis)
• give cancer linked to genetic

  breast and ovarian (brca gene)