muscle cell cycle

introduction

• The cell cycle, or cell-division cycle (cdc), is the series of events that takes place in a cell leading to its division and duplication.

muscle cell

• An increase in phosphatidylinositol 3-kinase (PI 3-kinase) activity is associated with vascular smooth muscle cell proliferation, and rapamycin, which blocks the activity of the mammalian target of rapamycin, inhibits this proliferation in vitro and in vivo.

muscle cell

• In some cases, the cells pass the G1 phase to a special resting state, called G0, which can last for days, weeks or years.

muscle cell

• Most of our nerve and muscle cells do not divide once again has matured (found in G0) and if one of these cells die, not replaced.

There are two types of muscles

smooth muscle

• It is composed of tapered cells with a central core.

cardiac muscle

• composed of cells with a central core, but with transverse striatum.

conclusion

• The physiological changes that occur as a result of exercising regularly practiced are essentially the growth of muscle tissue and the ability to regulate the nervous tissue to vary the number of muscle fibers contract simultaneously. Not all skeletal muscle fibers are exactly alike. They come in fast twitch and slow twitch.

Reference

• https://en.wikibooks.org/wiki/An_Introduction_to_Molecular_Biology/Cell_Cyc...
• http://www.ncbi.nlm.nih.gov/pubmed/11451744

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