Monique Jeffrey was lying in bed checking emails on her phone early one morning in 2011, when she suddenly sneezed and her neck jolted forward. As she sneezed, her C1 and C2 vertebrae collapsed and… ...

The vertebrae that make up the cervical spine are the smallest seven within the spinal column. These bones give the neck structure, support the skull, and protect the spinal cord, among other ...

Apparently, doctors in Utah and California that Crosby was consulting this All-Star week found abnormalities in his C1 and C2 vertebrae.