RAMUS By N., Sam M.S. - 3 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." Related Psychology Terms CEREBRAL CORTEX SPECIFIC ENERGIES SPINAL NERVES NEURON (Nerve Cell) HEARING CRANIAL NERVE TRIGEMINAL NERVE HEAD INJURY (CHRONIC TRAUMATIC DISORDERS) MENTAL RETARDATION (CAUSES) VAGUS NERVE Cite this page: N., Sam M.S., "RAMUS," in PsychologyDictionary.org, April 28, 2013, https://psychologydictionary.org/ramus/ (accessed July 6, 2022).