Any of the large branches of a spinal nerve emerging from the spine. These are responsible for distributing motor and sensory nerve fibers to other, smaller nerves.

RAMUS: "The Ramus somehow escaped injury in the accident."
Cite this page: N., Pam M.S., "RAMUS," in PsychologyDictionary.org, April 28, 2013, https://psychologydictionary.org/ramus/ (accessed May 13, 2021).