Of the 33 vertebrae in the spine, 24 have a central hole, called a foramen. The vertebrae are stacked on top of each other to form a column, and the foramina line up to create the spinal canal running ...
Basilar invagination is when the top of your spine gets pushed into the base of your skull. It leads to pinching or pressure on the brain stem, which is a bundle of nerves connecting the brain to the ...
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