Tuesday, May 25, 2010

What does Ca++ mean regarding the muscular system?

It is referring to serum Calcium, an important part of muscle contraction. Sometimes called intracellular free calcium or sarcoplasm calcium.
Calcium is a very important ion necessary for the proper functioning of the muscles. Calcium is stored in the sarcoplasmic reticulum and is released when the muscle cell depolarizes. It attaches to troponin which then attaches to the actin/myosin protein complex and is necessary in order fro contraction of the myofibrils to occur.

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