Type of cell that enters the G0 cycle such as brain cell?

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haglunde | Teacher | (Level 1) Adjunct Educator

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Most of the cells in our body are in G0 phase, when they are not dividing or preparing to divide.  However, the ability of the cell to re-enter the cell cycle depends on the cell type.  For example, a nerve cell, cardiac muscle cell, or a skeletal muscle cell are permanently in G0 phase and have dismantled their cell cycle control system so that they cannot re-enter the cell cycle.  On the other hand, most liver cells are in G0 phase but they can re-enter the cell cycle and divide if the liver is damaged.  Furthermore, lymphocytes exit and re-enter continually throughout their lifespans.