Cell Cycle

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Chapter: Anatomy and Physiology for Health Professionals: Levels of Organization : Cells

The life cycle of each cell is regulated via stimulation from hormones or growth factors.


Cell Cycle

The life cycle of each cell is regulated via stimulation from hormones or growth factors. Disruption of the cycle can affect the health of the body. Most human cells divide from 40 to 60 times before they die. The life cycle of a cell includes the following steps:

Interphase: The cell obtains nutrients to grow andduplicate. This is actually the period from cell for mation to cell division. This step may be betterunderstood as being a metabolic or growth phase.

Cell division (mitosis): The nucleus divides.

Cytoplasmic division (cytokinesis): The cytoplasmdivides.

Differentiation: The cell becomes specialized.

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