Why is the cartilage holding the trachea open C-shaped?

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Offline Shadec

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Joel Hillman  asked the Naked Scientists:
   Why are the 'C' shaped pieces of cartilage holding the trachea open 'C' shaped? Why not just rings?

Thanks!

-J
What do you think?
« Last Edit: 15/05/2010 23:30:02 by _system »

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Offline RD

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Why is the cartilage holding the trachea open 'C' shaped?
« Reply #1 on: 15/05/2010 23:12:01 »
« Last Edit: 15/05/2010 23:20:56 by RD »

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Offline chris

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Why is the cartilage holding the trachea open C-shaped?
« Reply #2 on: 16/05/2010 12:07:42 »
I think it's purely just economics and energetics. The C shape achieves with less tissue, space and volume what an O shape otherwise would. Thus, evolution has chosen the energetically cheapest "design".

Chris
I never forget a face, but in your case I'll make an exception - Groucho Marx