phrenic nerve: one of a pair of nerves that arises from cervical spinal roots and passes down the thorax to innervate the diaphragm and control breathing
spinal nerve: any of the 31 pairs of nerves emerging from each side of the spinal cord (each attached to the cord by two roots: ventral and dorsal)
elamite: a member of an ancient warlike people living in Elam east of Babylonia as early as 3000 BC