Cancer and Tumours

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Causes of Cancer and Tumours
Cancer is caused by uncontrolled cell growth and division, which is a result of changes that occur to the cells and results in the formation of a tumour (a mass of cells). Not all tumours are cancerous. They can be benign or malignant.
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Benign Tumours
Where the tumour grows until there is no more room. It stays in one place (usually within a membrane) rather than invading other tissues in the body. This type isn't usually dangerous, and the tumour isn't cancerous.
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Malignant Tumours
Where the tumour grows and spreads to healthy neighbouring tissues. Cells can break off and spread to other parts of the body through the bloodstream. They then invade healthy tissues elsewhere in the body and form secondary tumours. They are cancers
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Risk Factors of Cancer
Smoking- linked to lung, mouth, bowel, stomach and cervical cancer. Obesity- linked to bowel, liver and kidney cancer. UV exposure (from Sun)- linked to skin cancer. People who live in sunny climates and spend lots of time outside are at higher risk.
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Risk Factors of Cancer Continued
Infection with some viruses has been shown to increase the chance of developing certain types of cancer. For example, infection with hepatitis B and C can increase the risk of liver cancer. Risk factors can also be associated with genetics.
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Other cards in this set

Card 2

Front

Where the tumour grows until there is no more room. It stays in one place (usually within a membrane) rather than invading other tissues in the body. This type isn't usually dangerous, and the tumour isn't cancerous.

Back

Benign Tumours

Card 3

Front

Where the tumour grows and spreads to healthy neighbouring tissues. Cells can break off and spread to other parts of the body through the bloodstream. They then invade healthy tissues elsewhere in the body and form secondary tumours. They are cancers

Back

Preview of the back of card 3

Card 4

Front

Smoking- linked to lung, mouth, bowel, stomach and cervical cancer. Obesity- linked to bowel, liver and kidney cancer. UV exposure (from Sun)- linked to skin cancer. People who live in sunny climates and spend lots of time outside are at higher risk.

Back

Preview of the back of card 4

Card 5

Front

Infection with some viruses has been shown to increase the chance of developing certain types of cancer. For example, infection with hepatitis B and C can increase the risk of liver cancer. Risk factors can also be associated with genetics.

Back

Preview of the back of card 5

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