Jun 04 2008
What happens to sarcomere during contraction and relaxation?
afternoonskies asked:
Some sites would be useful as well.
Some sites would be useful as well.
One Response to “What happens to sarcomere during contraction and relaxation?”
The sarcomere is the actually contracting part of a muscle. When stimulated, it will shorten as the contractile proteins, actin and myosin, slide past each other. When the muscle relaxes, there is no change in length . The muscle will only lengthen if the opposing muscle is contracted.