Angels on a Pin

Jeffrey A. Clapper (clap@iastate.edu)
Tue, 28 May 1996 15:22:49 -0500

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At 06:04 PM 5/24/96 +0000, you wrote:
>
>Bruce Davis, MD - Clinical Pathology wrote:
>>
>> Cyto-trivia experts - I was asked by a colleague if there is an accepted
>> estimate as how many cells are in an adult human body. Anyone have a clue?
>>
>> Bruce H. Davis, M.D.
>> Director of Analytical Cytometry
>> Dept. of Clinical Pathology
>> William Beaumont Hospital
>> 3601 W. 13 Mile Rd.
>> Royal Oak, Michigan 48073-6769
>> 810-551-5137
>> FAX 810-551-8057
>
>There are around 24 x 10E12 red cells in an adult which is roughly one
>third of the total cells in the body (or so I've read).
>
>Ron Hill, Ph.D.
>Research Scientist
>Sugen, Inc.
>Redwood City, CA
>ronald@sugen.sf.ca.us
>

A pellet of 10e9 fibroblasts is about 1 mL or about 1 g (wet weight).
Thus, a 75 kg (75x10e3 g) person would have about 75x10e12 cells total.

Jeff Clapper
Cell and Hybridoma Facility
Iowa State Univeristy
515-294-8504

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