A man's muscle cells live many hours after he has died.
These appear between or sometimes on top of the muscle cells.
This process created more than 50 million new muscle cells.
The muscle cell is then ready for the next signal.
He also found that other muscle cells had grown larger.
In this particular fish, the muscle cells of the back fail to develop as they should.
Only when the levels of calcium inside the muscle cell are high enough will it contract.
Muscle cells, too, go through a series of characteristic changes as they mature.
That damages muscle cells and can even lead to heart failure.
This causes there to be less calcium available for the muscle cell.