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CÁNCER SOFÍAG. Y NICOLA 3ºA

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Subido el 15 de febrero de 2018 por Bárbara M.

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Cancer is a collection of related diseases which affect the cell growth. 00:00:04
Some of the cells of the body divide and spread into surrounded tissues. 00:00:08
Cancer cells are less specialized than the other cells and they do not have many functions as the others. 00:00:18
They are able to ignore signals that tell them to stop the division so the tumor grows. 00:00:23
They are also able to invade the immune system which protects our body from infections. 00:00:29
here you have the difference between a normal and infected cell cancer is produced by a proliferation 00:00:35
of abnormal cells without control these these cells have the ability to invite and destroy 00:00:44
tissues as a consequence of this excessive growth a tumor appears that can cause damage to both 00:00:50
tissues nearby and distant this tumor's purpose is to destroy the organic tissues inside the human 00:00:57
Some of the symptoms and signs of this disease are 00:01:08
Breathlessness. It's usual to feel out of breath sometimes, but if it is very repetitive, could be cancer. 00:01:12
Appetite loss, like for example if you have problems eating and you don't get enough nutrients. 00:01:22
Weight loss without trying is common if you have cancer. It is often one of the first signs. 00:01:33
Not all the reasons are available, but it is an estimate that approximately a half of the deaths by cancer may can be avoided at current healthy habits, no smoking, healthy diet, do exercise every day and use sun cream. 00:01:45
There are five main categories of cancer. Carcinomas begins in the skin or tissues on the internal organ, mainly epithelial tissues like the one in the picture. 00:02:06
Sarcomas develop in bones, muscles, fat or other connective tissues. 00:02:19
Leukemia is a type of cancer which begins in the blood cells and affects the circulatory system. 00:02:28
In the picture you have the difference between normal blood on the left and leukemia on the right. 00:02:37
Lymphoma starts in the immune system which is a host defense system comprising many biological structures. 00:02:43
Central nervous system cancer develops in the brain or in the spinal cord. 00:02:52
What causes cancer? 00:03:02
Ionizing radiations are radiations that affect our body due to random gas and ultraviolet radiation from the sun. 00:03:08
Radiation therapy for one type of cancer can cause another type of cancer. 00:03:15
There are other causes of cancer such as hormonal changes, viral and bacterial infections, genetic or inherited cancers. 00:03:20
and human system dysfunction. 00:03:33
Nowadays there are many treatments for the different types of cancer 00:03:42
such as surgery, radiotherapy, chemotherapy and others 00:03:45
but the best one is detecting the disease before it spreads through our body 00:03:49
so it will be easier to eliminate. 00:03:53
What does a cancer cell do? 00:03:58
Which part of the body can be affected by leukemia, blood cells, epithelial tissue, or connective tissues? 00:04:04
Which are the symptoms of cancer? 00:04:14
Subido por:
Bárbara M.
Licencia:
Reconocimiento - No comercial - Compartir igual
Visualizaciones:
75
Fecha:
15 de febrero de 2018 - 21:02
Visibilidad:
Público
Centro:
IES ALPAJÉS
Duración:
04′ 26″
Relación de aspecto:
1.74:1
Resolución:
480x276 píxeles
Tamaño:
22.60 MBytes

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