Curing Cancer - Documentary about Curing Cancer
Δημοσιεύτηκε στις 20 Φεβ 2015
Curing Cancer - Documentary about Curing Cancer
Cancer
is a term used for diseases in which abnormal cells divide without
control and are able to invade other tissues. Cancer cells can spread to
other parts of the body through the blood and lymph systems.
Cancer
is not just one disease but many diseases. There are more than 100
different types of cancer. Most cancers are named for the organ or type
of cell in which they start - for example, cancer that begins in the
colon is called colon cancer; cancer that begins in melanocytes of the
skin is called melanoma.
Cancer types can be grouped into broader categories. The main categories of cancer include:
-Carcinoma
- cancer that begins in the skin or in tissues that line or cover
internal organs. There are a number of subtypes of carcinoma, including
adenocarcinoma, basal cell carcinoma, squamous cell carcinoma, and
transitional cell carcinoma.
-Sarcoma - cancer that begins in bone, cartilage, fat, muscle, blood vessels, or other connective or supportive tissue.
-Leukemia
- cancer that starts in blood-forming tissue such as the bone marrow
and causes large numbers of abnormal blood cells to be produced and
enter the blood.
-Lymphoma and myeloma - cancers that begin in the cells of the immune system.
Central nervous system cancers - cancers that begin in the tissues of the brain and spinal cord.
What causes cancer?
Cancer
is ultimately the result of cells that uncontrollably grow and do not
die. Normal cells in the body follow an orderly path of growth,
division, and death. Programmed cell death is called apoptosis, and when
this process breaks down, cancer begins to form. Unlike regular cells,
cancer cells do not experience programmatic death and instead continue
to grow and divide. This leads to a mass of abnormal cells that grows
out of control.
Cancer
is a term used for diseases in which abnormal cells divide without
control and are able to invade other tissues. Cancer cells can spread to
other parts of the body through the blood and lymph systems.
Cancer
is not just one disease but many diseases. There are more than 100
different types of cancer. Most cancers are named for the organ or type
of cell in which they start - for example, cancer that begins in the
colon is called colon cancer; cancer that begins in melanocytes of the
skin is called melanoma.
Cancer types can be grouped into broader categories. The main categories of cancer include:
-Carcinoma
- cancer that begins in the skin or in tissues that line or cover
internal organs. There are a number of subtypes of carcinoma, including
adenocarcinoma, basal cell carcinoma, squamous cell carcinoma, and
transitional cell carcinoma.
-Sarcoma - cancer that begins in bone, cartilage, fat, muscle, blood vessels, or other connective or supportive tissue.
-Leukemia
- cancer that starts in blood-forming tissue such as the bone marrow
and causes large numbers of abnormal blood cells to be produced and
enter the blood.
-Lymphoma and myeloma - cancers that begin in the cells of the immune system.
Central nervous system cancers - cancers that begin in the tissues of the brain and spinal cord.
What causes cancer?
Cancer
is ultimately the result of cells that uncontrollably grow and do not
die. Normal cells in the body follow an orderly path of growth,
division, and death. Programmed cell death is called apoptosis, and when
this process breaks down, cancer begins to form. Unlike regular cells,
cancer cells do not experience programmatic death and instead continue
to grow and divide. This leads to a mass of abnormal cells that grows
out of control.
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