Definition of ramus communicans in English:

ramus communicans

Pronunciation /ˌreɪməs kəˈmjuːnɪk(ə)nz/


Anatomy Zoology
  • A branch of a nerve or blood vessel that joins another nerve or blood vessel; specifically a bundle of nerve fibres joining a sympathetic ganglion and a spinal nerve. Frequently with distinguishing Latin or English word, typically indicating the anatomical location or the type of nerve fibre forming the branch.


Late 18th century; earliest use found in Charles Bell (1774–1842), physiologist and surgeon. From post-classical Latin ramus communicans from classical Latin rāmus branch + commūnicāns, present participle of commūnicāre.