CANCER - Some cells instead of leaving the cell cycle to die divide repeatedly and excessively forming a clump of cells called a tumour Cancer Cancer is

CANCER - Some cells instead of leaving the cell cycle to...

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Cancer Some cells, instead of leaving the cell cycle to die, divide repeatedly and excessively, forming a clump of cells called a tumour. Cancer is a disease that eventually disrupts the body functions, whereas a tumour is a mass of cells with no apparent function in the body. Cancer is the uncontrolled division and spread of abnormal cells.
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An estimated 171,000new cases of cancer (excluding 75,100 non-melanoma skin cancers), and 75,300 deaths from cancer are expected to occur in Canada in each year.
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About 40 per cent of Canadian women and 45 per cent of men will develop cancer during their lifetimes.
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About 24 per cent of women and 29 per cent of men, or approximately one out of four Canadians, is expected to die from cancer.
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Benign: (non cancerous) harmless tumours that do not spread Malignant: harmful tumours that have the potential to spread through the body Metastatic: tumours that have have travelled and grown in other areas Three Tumour Types
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Different Kinds of Cancer Fat Bone Muscle Lymphomas: Leukemias: Some common carcinomas: Lung Breast (women) Colon Prostate (men) Bladder Lymph nodes Bloodstream Some common sarcomas:
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Q1:Do you know someone personally that has had cancer? A: Yes B: No
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Loss of Normal Growth Control Cancer cell division Fourth or later mutation Third mutation Second mutation First mutation Uncontrolled growth Cell Suicide or Apoptosis Cell damageno repair Normal cell division
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Example of Normal Growth Cell migration Dermis Dividing cells in basal layer Dead cells shed from outer surface Epidermis
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The Beginning of Cancerous Growth
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