Neurology Lab 2 - Module 1 - Vertebral Column: Page 5 of 5

Look at the accompanying diagram and answer the following questions:

	In general ligaments serve to strengthen the joints between bones. The anterior longitudinal ligament is much wider that than the posterior longitudinal ligament. Why would this happen from an anatomical perspective?
The posterior longitudinal ligament runs in the vertebral canal and therefore must be thinner.

	If an intervertebral disk slips from between two vertebrae, will it slip anteriorly or posteriorly?
Posteriorly, because the posterior longitudinal ligament is not as wide and cannot prevent the slippage as easily. This could potentially cause compression of the spinal cord.