Cancer

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Cancer Powered By Docstoc
					Cancer

Lauren Oshry
January 12, 2006
Normal Cells
   What are the
    essential parts of a
    normal cell?
   What parts of the cell
    are most important for
    growth and division?
   Are your cells dividing
    right now?
Exposure to a Carcinogen (Smoke)

   What is a
    carcinogen?
   What are some
    examples of
    carcinogens?
Exposure to a Carcinogen (UV)
   How does sun
    exposure affect the
    cell?
   What types of
    cancers are related to
    sun exposure?
DNA Becomes Mutated
   What happens when
    DNA mutates?
   How can this affect
    the cell?
   What causes
    mutations?
Tumor Begins to Form
   What is a tumor?
   What do tumors need
    to grow?
   How can tumors be
    harmful?
   How can tumors be
    stopped?
Cells Send Signals to Control
Growth
   What part of the cell
    controls growth?
   How do cells “talk” to
    other cells?
Cancer Cells Ignore Signals
   What happens when
    a cancer cell ignores
    signals?
Cancer Cells
   How is cancer
    diagnosed?
   How do cancer cells
    look different?
Cancer Cells Enter Blood
   What happens when
    cancer cells enter the
    bloodstream?
   How do the cells
    move?
Metastasis
   What is metastasis?
   Why is it bad?
Metastases
   What is happening in
    this picture?
   How can cancer be
    treated?
How to Steer Clear of Cancer:
Smoking
 Cigarette smoking is the major cause of cancer deaths in the U.S.
 Lung cancer is the #1 cause of
   cancer death

   87% of lung cancers are related to
    cigarette smoking

   Men who smoke are 23 times more
    likely to develop lung cancer and
    women who smoke are 13 times
    more likely

   157,200 people died of lung cancer
    in 2003

   Smoking is linked to lung cancer as
    well as esophageal cancer, bladder
    cancer, and head and neck cancer
How to Steer Clear of Cancer:
Smoking, Don’t Start!
   Each day 4,000 teens try
    their first cigarette
   Nicotine causes addiction
   Most (60%) will become
    regular smokers
   Half will die of smoking-
    related disease
   Smoking SUCKS!!!
How to Steer Clear of Cancer:
Diet
   Eating vegetables and
    fruits has been shown to
    lower the risk of several
    cancers
   Vegetables and fruits
    contain anitoxidants,
    minerals, vitamins, fiber
   Eat at least 5 servings a
    day
   Limit saturated fats
How to Steer Clear of Cancer:
Exercise
   One third of cancer
    deaths in the U.S. are
    due to unhealthy diet and
    insufficient exercise
   Obesity is linked to
    breast, colon,
    endometrial, esophageal,
    and kidney cancers
   60 minutes of exercise 5
    days a week
How to Steer Clear of Cancer: Sun
   Mr. Sun... Friend or
    Foe???
   Skin cancer is the most
    common form of cancer
   UV rays damage DNA
   1 million cases in the U.S.
    each year and rising
   Non melanoma (basal
    cell and squamous cell)
    and melanoma
Prevention is the Best Medicine
   Good habits are
    important now
   Eat right
   Exercise
   DON’T SMOKE!!!
The End!

				
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