Cell Division Going Wrong Cancer Cancer n A

Cell Division Going Wrong: Cancer

Cancer n A group of diseases in which cells grow and divide out of control.

Check points…

Cancer n Why does it keep dividing? The cells checkpoints might fail to identify problems or kill off the cell n Apoptosis- Cell regulated death. Lysosomes will burst instantly killing the cell. n Ex. White blood cells n

Cancer n Tumour – a rapidly growing mass of cells

Cancer Benign tumour – the cells stay together and have no serious effect on surrounding tissues. n Malignant tumour – the cells interfere with the function of neighbouring cells and tissues n Benign tumor Malignant tumour

Cancer n Metastasis – occurs when cancer cells break away from the original tumour and move to a different part of the body.

Causes of Cancer n Mutations – random changes that occur in the DNA while it is being duplicated.

Causes of Cancer n Carcinogens – are environmental factors that cause mutations. Tobacco n Viruses n Plastics n Radiation n n X-rays n Sunlight

Causes of Cancer n Some cancers can be hereditary depending on whether or not you obtain that portion of DNA from your parents. n Ex. Breast cancer, colon cancer

Smoking and Cancer n What else does smoking affect? ? Lungs n Lips n Tongue n Fingers n Trachea n throat n

Cancer Screening n This involves checking for cancer even if there are no symptoms. This is important to catch cancer at an early stage. n ABCD (asymmetry, border, colour, diameter) n

Diagnosing Endoscopy- using a scope and camera n Ultrasound- uses waves to diagnose n X-Ray- Uses x-rays to create a visual n CT scan “computerized tomography”combines a series of X-ray images taken from different angles and uses computer processing to create cross-sectional images, or slices, of the bones, blood vessels and soft tissues inside your body. n

CT SCAN

Treatments n Surgery- physically removing the cancer cells

Treatments n Radiation- Radiation damages cancer cells as well as normal cells in the area.

Treatments Chemotherapy- Using chemicals to slow or stop cancer from dividing. n Side effects- nausea, hair loss fatigue n

Cancer Fighting ‘Super Foods’