Cancer

• What happens when a call changes due to genetic mutations?

  It starts to divide in an uncontrollable way
• What is a mass of abnormally growing cells called?

  a tumour
• Where do benign tumours grow?

  In one place - doesn't invade other tissues
• How can Benign tumours be dangerous?

  If it grows in tissue such as the brain and compresses it
• Where do Malignant Tumours grow?

  Anywhere in the body - spread to healthy tissues
• What are Malignant tumours?

  Cancer
• How do malignant tumours form secondary tumours?

  Some malignant cells may enter the bloodstream and circulate to other parts of the body
• What are 4 causes of cancer?

  • Genetic factors
  • Mutations in genes caused by carcinogens
  • Ionising radiation
  • Virus infections
• What is an example of a type of cancer caused by a genetic factor

  some breast cancers
• What is an example of cancer caused by ionising radiation?

  UV light causing skin cancers
• What is an example of cancer caused by virus infections?

  HPV causing cervical cancer
• What is an example of cancer caused by a mutation in genes caused by carcinogens?

  carcinogens in tobacco causing lung cancer
• What can cancer be treated with?

  Radiotherapy & Chemotherapy