Cancer - hrsbstaff.ednet.ns.ca
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Transcript Cancer - hrsbstaff.ednet.ns.ca
Cancer
Mitosis Gone Wild
What is it??
Uncontrolled, unregulated
growth of cells
Cell division happens much
more rapidly
Cancer cells often look much different then
regular cells
Tumours and Cancer
Tumours can be either benign (non-cancerous)
or malignant (cancerous).
Benign tumour cells stay in one place in the
body and are not usually life-threatening.
Malignant tumour cells are able to invade nearby
tissues and spread to other parts of the body.
Cancer cells that spread to other parts of the
body are called metastases.
Normal cells versus Cancer cells
Usually only divide to
replace damaged cells
Cell to cell
communication
Cannot divide in
isolation
Adhere to one
another
Can differentiate
Uncontrolled cell
division
Do not need to
communicate with
each other
Can divide in isolation
Can metastasize
(through circulatory
and lymphatic)
Can not differentiate
Cancer in Young Adults
Approximately 10 000 cancers are diagnosed in
young adults each year
Cancer is the main cause of early death among
young adult women
More young women then young men are now
diagnose with, and die from, lung cancer
Testicular cancer is the most common cancer in
young men
Causes of Cancer
Causes are still not really understood
Carcinogens are chemicals that cause cancer by causing
mutations
Lifestyle habits (diet, tanning, tobacco, alcohol,
radiation, occupational hazards)
Environmental triggers
Family history
Journal Assignment
Due on Thursday
Marked out of 20 points
3 Parts to include in your journal
– Fully explain the connections between mitosis and
cancer. (5 pts)
– Why is it important to learn about cancer? (5 pts)
– How has affected you in your life? (5 pts)
– Also include vocab words: metastasize, benign, and
malignant somewhere in your entry (5 pts)