What are stable cells in the context of body cell types?

Stable cells are defined as those that have the capacity to regenerate under certain conditions, particularly when there is a need for repair or replacement following injury or loss. These cells are typically in a quiescent phase but can be stimulated to divide and proliferate when the body demands it, such as in response to tissue damage or other physiologic requirements.

Examples of stable cells include hepatocytes (liver cells), renal tubular epithelial cells, and certain types of connective tissue cells. In contrast, there are other cell types, such as labile cells, which continuously regenerate (like those found in the skin and gastrointestinal tract), and permanent cells, which do not have the ability to divide (such as neurons and cardiac muscle cells). The hallmark of stable cells is their ability to respond to stimuli for regeneration, thus functioning effectively when the body requires it.