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Medical Dictionary

ramus communicans

noun ramus com·mu·ni·cans \-kə-ˈmyü-nə-ˌkanz\
plural rami com·mu·ni·can·tes \-kə-ˌmyü-nə-ˈkan-ˌtēz\

Medical Definition of RAMUS COMMUNICANS

:  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 communicans b :  one consisting of unmyelinated postganglionic fibers—called also gray ramus, gray ramus communicans
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