or are we born with certain number of muscle cells (which means that number of muscle cells remain relatively constant throughout our life span) and we only increase the size of each muscle cells?
obviously when we do weight lifting, our arms become bigger, and I am curious whether it is that the number of muscle cells in that particular area (arms) increases, or it is that the size of each muscle cells get bigger (in this case, does the number of muscle cells remain constant?)!
Please explain to me in detail.
if you can explain in molecular level, how protein takes a role in this situation, that would be extremely helpful! Please explain what actually happens as we move the weights up and down, what happens to our orginal muscle cells, in detail, and how they tear up and recover, how in physiology our muscles are bigger in the end, in terms of how the muscle cell is different from the orginal muscle cell. Please explain in cellular, molecular and physiological level!thx:)
2006-08-06
20:43:39
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2 answers
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asked by
Anonymous