Number Of Cells in the Human Body

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How many cells are there in the human body?

100 trillion

Humans have an estimated 100 trillion or 1014 cells. A typical cell size is 10 µm. A typical cell mass is 1 nanogram.

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One Response

  1. David Bergt

    September 7, 2012 5:54 pm

    “Number of cells in the human body”

    In the answer, there is the phrase, “100 trillion or 1014 cells.” Obviously, that is 10 to the 14th power, but it could mislead or confuse someone. There is also the chance that on my computer it looks like 1,014, and on your computer, the 14 is a superscript…..not sure.

    Dave Bergt
    Houston

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