NATS 1650 Lecture Notes - Lecture 6: Sacrum, Cervical Vertebrae, Spinal Canal
8 Jan 2020
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These three do match the other cervical vertebrae. It holds the world; your skull sits on that bone. Has a broad, flat setup for the skull to rest on. No spinous process to accommodate the size of the skull that is sitting on it. Dens; bony projection sticking out of it. Sticks through the vertebral foramen, and a ligament wraps around it to allow the atlas to spin around it. Transverse ligament holds atlas in place and allows rotation movement. Gives the rotational movement of the neck. The dens was the body of the atlas. We have a body in c1 as a fetus, and that turns into the dens. There is no intervertebral disc between c1 and c2; the first one is between. The most inferior of the cervical vertebrae (closer to the bottom of the body) Does not have a bifid spinous process. The first bump you can easily feel on the back of your neck.
