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How Your Body Knows Left From Right

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Published on Jul 18, 2014

Why are our bodies so symmetrical, but our guts aren't?

↓ More info and sources below ↓

Subscribe to It's Okay To Be Smart: http://bit.ly/iotbs_sub
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This is part 3 of 3 in my series about how our bodies evolved to look like they do. Check out the others:
Part 1 - Why your brain is in your head https://www.youtube.com/watch?v=qdNE4...
Part 2 - Consider the upside-down lobster https://www.youtube.com/watch?v=QYbJq...

More info:

Left-Right asymmetry in embryonic development: http://www.ncbi.nlm.nih.gov/pubmed/15...

Development of the asymmetric human: http://journals.cambridge.org/action/...

Role of cilia and fluid flow: http://www.ncbi.nlm.nih.gov/pubmed/24...

Situs inversus: http://en.wikipedia.org/wiki/Situs_in...
http://www.nytimes.com/2013/06/04/sci...

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Have an idea for an episode or an amazing science question you want answered? Leave a comment below!

Follow me on Twitter: @jtotheizzoe
Email me: itsokaytobesmart AT gmail DOT com
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For more awesome science, check out: http://www.itsokaytobesmart.com

Joe Hanson - Host and writer
Joe Nicolosi - Director
Amanda Fox - Producer, Spotzen Inc.
Kate Eads - Associate Producer
Katie Graham - Director of Photography
Post Producer - Stephanie Noone
Editing/Motion Graphics - Arts+Labor, Austin, TX
John Knudsen - Gaffer


Music:
"Ouroboros" by Kevin MacLeod

Stock images via Shutterstock

Produced by PBS Digital Studios: http://www.youtube.com/user/pbsdigita...

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Last week's video: Why Did We Blow on NES Games? https://www.youtube.com/watch?v=4Gf9m...


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The Far Future of the Universe - https://www.youtube.com/watch?v=Jl9Dw...
There Was No First Human - https://www.youtube.com/watch?v=xdWLh...
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