when an organ grows - (Mar/14/2009 )

When the lung and the kidney grow in sizes (from a baby to an adult), what cells are dividing actually?

There are so many different types of cells, do they all divide?

jiro_killua on Mar 14 2009, 09:36 PM said:

I'd say the stem cells divide and then differentiate to different cell types. But I'm not an expert on this topic.

hobglobin on Mar 14 2009, 04:00 PM said:

say for example, when liver grows, hepatocytes will divide rather than a "liver stem cell" divide and differentiate into hepatocytes

in the case of kidney, a "kidney stem cell" is yet to be identified