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Are the cells in are body constantly being renewed

Debate and discussion of any biological questions not pertaining to a particular topic.

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Are the cells in are body constantly being renewed

Postby tim5656 » Wed May 25, 2011 2:15 am

The cells in are body are constantly being renewed. So my question is are we constantly dying and being reborn? Or is my defenition wrong change doesn't equate to death? Is Change part of the defenition of human life?

Sorry if this kinda philosophical I wanted a biological answer. Can you also try to keep your answer simple i'm not the smartest person thanks.
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Postby Darby » Thu May 26, 2011 11:08 am

Only some cells get replaced. Most of your nervous system, muscle system, and some of your skeletal cells are the cells you were born with.
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Postby mith » Thu May 26, 2011 10:35 pm

Here's your philosophical answer

http://en.wikipedia.org/wiki/Ship_of_Theseus
Living one day at a time;
Enjoying one moment at a time;
Accepting hardships as the pathway to peace;
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Re: Are the cells in are body constantly being renewed

Postby tim5656 » Fri May 27, 2011 2:32 am

I'm still a little confused are you considered dying and being reborn or are you just considered changed but still alive and have never died?
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Postby kathreeds » Wed Jun 15, 2011 6:42 am

They don't become dead but are continuously replaced. For Example: when your hand burns or you get a cut, the cells are replaced by the old/damaged ones.
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Postby adihutama » Thu Jun 16, 2011 1:38 am

IMO, changing cell doesnt equate death.
IF you want to, you can refer to any scientific definition of death conjured by physician or something. I believe it involve more than justskin changing.
Well the cells being changed were dead, and they got degraded or anything, but as individual, we are not dead (and then reborn).

Hope it helps
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Re: Are the cells in are body constantly being renewed

Postby tim5656 » Fri Jul 01, 2011 5:17 am

Does everybody agree that changing cells doesn't equal death. I am curious to hear other peoples answers. Agree or disagree. Also I would prefer no religous or spirtual peoples answer
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Postby florinka » Fri Jul 01, 2011 9:17 am

My opinion: Being alive means to keep the organization of our body on some level. The loss of organisation means we change in not-alive particles by the process of decompositation. And since changing the cells (useless, damaged) is also helping to keep the organization, it is not dieing. It's a way how to keep the body working - alive.
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Postby vinayaksabnis » Sat Jul 09, 2011 3:17 pm

Survival of the fittest those cells which are fit to live survive function as a part of body are live those which fail to carry out their function to the organ those are dead... Example is your own skin dead skin comes out and new layer replaces that place so this is all what about survial of the fittest.... All depends on your immunity system and the function it carries out.... T cells B cells etc end of thinking capacity....:D
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Re: Are the cells in are body constantly being renewed

Postby kmo9000 » Tue Jul 26, 2011 5:50 am

tim5656 wrote:Does everybody agree that changing cells doesn't equal death. I am curious to hear other peoples answers. Agree or disagree. Also I would prefer no religous or spirtual peoples answer


Why would that matter in the slightest? Do you want to know if the cells go to an afterlife when they renew? Personally I think the entire question is silly.

Ask yourself this: when your cells renew does your heart stop beating in order for the cells to go through their cycle? No. Last time I checked the definition of death is all organs ceasing to function. The cellular cycle is a healthy part of life AND the individual organs that make up the body.
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Re: Are the cells in are body constantly being renewed

Postby charles brough » Wed Aug 17, 2011 7:51 pm

tim5656 wrote:The cells in are body are constantly being renewed. So my question is are we constantly dying and being reborn? Or is my defenition wrong change doesn't equate to death? Is Change part of the defenition of human life?


Many cells have their own life cycle just as you and I do. That does not mean that the "social organism" we are members of dies. It lives on in the same way we do.

As it has been said here, some cells live as long as we live. Others die and are metabolized to finally end up excreted from the liver or kidneys. Those many cells that are sloughed off from our skin each day certainly die.

It is of interest that there is an atrial fibrulation drug that cannot be excreted either by the liver or from the kidneys. It accumulates, and its toxicity regulates the heart beat, but it causes a wide assorment of ill effects if taken in more than minimal doses. The only way it is excreted is in the cells that are replaced in and outside (the skin) of the body.
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Postby tim5656 » Mon Dec 19, 2011 12:25 am

I have another question does the ship of theseus conclusion agree with the conclusion that with the " definition of death is all organs ceasing to function."
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