The cervical enlargement corresponds with the attachments of the large nerves which supply the upper limbs.
Diagrams of the medulla spinalis. (Cervical enlargement labeled at upper right.)
The reason behind the enlargement of the cervical region is because of the increased neural input and output to the upper limbs.
An analogous region in the lower limbs occurs at the lumbar enlargement.
- lesson6spinalcord&coverings at The Anatomy Lesson by Wesley Norman (Georgetown University)
- Anatomy photo:02:08-0101 at the SUNY Downstate Medical Center - "Vertebral Canal and Spinal Cord: Regions of the Spinal Cord"
- Atlas image: n3a5p3 at the University of Michigan Health System - "Spinal Cord, Fetus, Posterior View"