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What does AA stand for?

AA stands for Atlanto-Axial (joint)

This definition appears frequently and is found in the following Acronym Finder categories:

  • Science, medicine, engineering, etc.

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We have 145 other meanings of AA in our Acronym Attic

Samples in periodicals archive:

The atlanto-axial portion of the vertebral artery is particularly of interest because this region is usually injured in cases of post-manipulative vertebral artery dissection and because of the large excursion of movement that takes place at this joint during neck rotation (Selecki 1969).