Skip to main content

Does anyone have good resource info on cell replacement?

Doing a kid's book and need to find out info on how quickly cells are replaced in the human body. I know that some turn over very quickly (liver or kidney) and others more slowly (bone) but that they are all replaced over a decade or two (well, I think so, anyway). Anyone know of a resource? I tried googling but could only find stuff on cancer, etc.

Comments

TaiChi said…
The best I could find:

http://askanaturalist.com/do-we-replace-our-cells-every-7-or-10-years/
http://www.nytimes.com/2005/08/02/science/02cell.html
http://boards.straightdope.com/sdmb/showthread.php?t=372183 (Scroll to JR Brown's posts for a list of citations)
July 22, 2011 at 7:32 AM
Rowan said…
I think "cell turnover" might be a more useful search term - it yielded this.
July 22, 2011 at 8:46 AM
Stephen Law said…
Thanks - very helpful...
July 22, 2011 at 1:06 PM
wombat said…
It would seem to be manifestly untrue in the case of egg cells in the female which are apparently all present at birth and are never replaced. Some of these of course last up to around 45 years or so.

Theres also a bit of an issue isn't there with cell identity surely? If cells reproduce by splitting which is the original and which is the new one or do we consider them both new?
July 22, 2011 at 1:42 PM
Stephen Law said…
yes I shall write this bit with some care.
July 22, 2011 at 2:12 PM
Runescape Gold for Sale said…
This really is our new my partner and i visit here. I found so many engaging products in your blog, particularly it's discussion. In the tons of comments on your posts, I guess I'm not the only one obtaining all the amusement here! Continue the excellent work. Buy RS Gold
Runescape Gold
January 14, 2012 at 6:55 AM
Anonymous said…
Aqua Rite Flow Switch

We are committed to providing our customers with an individualized quality service, offering professional assistance and low product pricing designed to strengthen
May 24, 2012 at 6:00 AM
Post a Comment

Popular posts from this blog

The Evil God Challenge and the "classical" theist's response

On another blog, FideCogitActio, some theists of a "classical" stripe (that's to say, like Brian Davies, Edward Feser) are criticisng the Evil God Challenge (or I suppose, trying to show how it can be met, or sidestepped). The main post includes this: In book I, chapter 39 , Aquinas argues that “there cannot be evil in God” (in Deo non potest esse malum). Atheists like Law must face the fact that, if the words are to retain any sense, “God” simply cannot be “evil”. As my comments in the thread at Feser’s blog aimed to show, despite how much he mocks “the privation theory of evil,” Law himself cannot escape its logic: his entire argument requires that the world ought to appear less evil if it is to be taken as evidence of a good God. Even though he spurns the idea that evil is a privation of good, his account of an evil world is parasitic on a good ideal; this is no surprise, though, since all evil is parasitic on good ( SCG I, 11 ). Based on the conclusions of se...
446 comments
Read more

EVIDENCE, MIRACLES AND THE EXISTENCE OF JESUS

(Published in Faith and Philosophy 2011. Volume 28, Issue 2, April 2011. Stephen Law. Pages 129-151) EVIDENCE, MIRACLES AND THE EXISTENCE OF JESUS Stephen Law Abstract The vast majority of Biblical historians believe there is evidence sufficient to place Jesus’ existence beyond reasonable doubt. Many believe the New Testament documents alone suffice firmly to establish Jesus as an actual, historical figure. I question these views. In particular, I argue (i) that the three most popular criteria by which various non-miraculous New Testament claims made about Jesus are supposedly corroborated are not sufficient, either singly or jointly, to place his existence beyond reasonable doubt, and (ii) that a prima facie plausible principle concerning how evidence should be assessed – a principle I call the contamination principle – entails that, given the large proportion of uncorroborated miracle claims made about Jesus in the New Testament documents, we should, in the absence of indepen...
159 comments
Read more

Sye show continues

I was sent a link to this , for those interested in the never ending saga of Sye TenBruggencate and his "proof" of the existence of God. Hit "sinner ministries' proof of the existence of god" link below or on side bar for 30+ earlier posts on this topic that I wrote during an extended interchange with him last summer (check the literally many hundreds of comments attached to these posts if you really want to get into how Sye thinks and argues). Sye's amazing intial "proof" is available here . PS. For those interested, my own "presuppositional" proof, parodying Sye's proof by his principle "the impossibility of the contrary" (which turns out to be the key to Sye's proof) is: My claim: Sye's mind is addled and his thinking unreliable because he was hit on the head by a rock. Prove this is false, Sye. Try to, and I will say - "But your "proof" presupposes your mind is not addled and you can recognise a pr...
250 comments
Read more