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Medical Dictionary

ramus communicans

noun ramus com·mu·ni·cans \-kə-ˈmyü-nə-ˌkanz\

Medical Definition of ramus communicans


rami communicantes

  1. :  any of the bundles of nerve fibers connecting a sympathetic ganglion with a spinal nerve and being divided into two kinds:a:  one consisting of myelinated preganglionic fibers—called also white ramus, white ramus communicansb:  one consisting of unmyelinated postganglionic fibers—called also gray ramus, gray ramus communicans

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