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Questions tagged [vertebra]

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If the human atlanto-axial joint is pivotal only, what accounts for the craniums additional degrees of freedom?

The atlanto-axial joint is supposedly a pivot joint. I assumed it would be considered a ball-and-socket joint, based on a) the physical shape of the dens, and b) the degrees of motion of the cranium ...
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Identify this vertebra

I was walking on the beach in New Jersey (U.S.), at about 40 degrees longitude, and found this bone. It's not a fish. The long process in the front is interesting. It is likely a C2 vertebra. I looked ...