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Cancer cells refer to malignant tumor cells formed by normal cells that undergo genetic abnormalities under the action of various carcinogenic factors. Cancer cells** are different from normal cells, but they are fundamentally different from normal cells. First of all, normal cells are generally regular in shape and arranged in a neat arrangement.
The shape of the cancer cells is irregular, even weird, and the arrangement is chaotic. Secondly, normal cells do not grow fast and will age and die when they reach a certain lifespan, while cancer cells will grow rapidly and will not senescence and death, that is, they will gain immortalization. Thirdly, normal cells generally grow in situ or fixed tissues and organs, and do not metastasize to other tissues and organs.
Cancer cells can metastasize and grow with the flow of blood or lymphatic fluid. Cancer cells can evolve genes that normal cells do not have, or cancer cells may have a gene that is significantly more expressed and enhanced than normal cells.
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Cancer cells are a kind of mutated cells, it is the source of cancer, cancer cells are different from normal cells, there are three characteristics of infinite proliferation and transformation, as well as easy metastasis, can proliferate indefinitely, and destroy normal cell tissue.
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Cancer cells are formed by mutations of normal cells in the human body, characterized by continuous intake of nutrients in the human body, continuous proliferation and spread, and constantly cause damage to the body.
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This is often a very difficult ethical issue that depends on the values and moral code of the patient and other people involved. However, there are some common factors that can be discussed to help make a decision.
First of all, the patient's wishes should be respected. If the patient expresses a specific medical** preference, this should be respected. If the patient does not express a clear medical preference, then the health care worker should do their best to understand the patient's values and make medical decisions with the patient's relatives.
Second, while ending pain may be an important starting point, it's not just about relieving physical pain. The human body is a whole in which the physical, emotional, and spiritual interact with each other, so it is necessary to improve the patient's overall state through comprehensiveness**.
Finally, the risks and benefits of ** need to be assessed. Risks, potential adverse effects, and outcomes should also be assessed. When making decisions, you need to carefully balance the potential benefits and risks** to make meaningful choices on land.
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A good attitude is the medicine that stimulates self-healing.
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The essential function of cancer cells is dedifferentiation, each cell in the body has its own function, they perform their own duties in the human body, and grow in an orderly manner, but with the development, due to some uncontrollable factors, the cancer cells are dysfunctional, resulting in the metastasis of the immune system.
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Personally, I believe that the purpose of cancer cells is only because cancer cells are mutated. As a living organism, it also needs to survive normally in the human body. So it has no purpose, just a normal growth as a living being.
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The world is so big that there are no surprises, even cancer cells have the meaning and purpose of their existence, and their meaning and purpose are related to their functions, that is, to harm human beings and living things, which is the meaning and purpose of the existence of cancer cells themselves.
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The purpose of cancer cells is to assimilate normal cells in the human body, so that the functions of the human body can change, and some scientists believe that the mechanism of infinite replication of cancer cells can be applied to ordinary cells. The secret to being able to live forever.
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What is the purpose of human beings living on the earth, is to survive, and what is the purpose of cancer cells in the human body, the answer is very simple, just like human beings, it is to survive.
In "Former Chibi Fu", Su Shi focuses on describing the two beautiful images of water and moon in the face of various objects that can enter the poetic realm, such as the mountains and rivers of Chibi, the wind and the moon, the flat boats and fishing songs of the host and guest. The water is the water of the Yangtze River in July, and the month is the Mid-Autumn Festival in August. At that time, the water "the breeze is coming, the water waves are not prosperous", "the white dew crosses the river, and the water shines to the sky"; At that time, "the moon came out of the east mountain, hovering among the bullfights". >>>More
In the end, blockchain is a new application mode of computer technology, such as distributed data storage, point-to-point transmission, consensus mechanism, encryption algorithm, etc. Blockchain is essentially a decentralized database. >>>More
First of all. I suggest you watch ** oh.
Chapter 2, "Murder Investigation (I)". >>>More
It is not too difficult to take the advanced mathematics test.
First of all, if you are wrong, if the value type is a global or static variable, it is assigned on the heap, and the local variable is allocated on the stack. The reference type is allocated on the heap, because the new comes out of the dynamically allocated memory, so both local and global are in the heap until the garbage user goes to it. In fact, memory allocation is basically the same form, and it has nothing to do with the language.