# Which has more bone mass: upper legs and arms or lower legs and arms?

**URL:** <https://boards.straightdope.com/t/which-has-more-bone-mass-upper-legs-and-arms-or-lower-legs-and-arms/759123>\
**Category:** Factual Questions\
**Created:** [July 5, 2016, 2:41pm UTC](https://boards.straightdope.com/t/which-has-more-bone-mass-upper-legs-and-arms-or-lower-legs-and-arms/759123 "2016-07-05T14:41:52Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Earl\_Snake-Hips\_Tucker](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/earl_snake-hips_tucker/32/3269_2.png) [@Earl\_Snake-Hips\_Tucker](https://boards.straightdope.com/u/Earl_Snake-Hips_Tucker)\
**Post date:** [July 5, 2016, 2:41pm UTC](https://boards.straightdope.com/t/which-has-more-bone-mass-upper-legs-and-arms-or-lower-legs-and-arms/759123/1 "2016-07-05T14:41:52Z")

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I know there has to be some variation, but I’m guessing there’s an average somewhere.  
Humerus vs. radius and ulna  
and  
Femur vs. fibula and tibia.

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**Author:** ![Atamasama](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/atamasama/32/12961_2.png) [@Atamasama](https://boards.straightdope.com/u/Atamasama)\
**Post date:** [July 5, 2016, 3:14pm UTC](https://boards.straightdope.com/t/which-has-more-bone-mass-upper-legs-and-arms-or-lower-legs-and-arms/759123/2 "2016-07-05T15:14:36Z")

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I have no meaningful information to contribute but I want to say I enjoy the username/thread title combo. 🙂