nervus phrenicus nervus opticus • nervus radialis · · · Info · Definitions · Synonyms · Characters · · nervus phrenicus · · Text Common · · Latin · · Scripts 16 · · Length 5 · · Syllables Definitions · · · (noun) one of a pair of nerves that arises from cervical spinal roots and passes down the thorax to innervate the diaphragm and control breathing. Synonyms: phrenic nerve, nervus phrenicus. · · Noun Definition 1 Synonyms · · · phrenic nerve · · Synonym 1 Characters · · space U+0020 c latin small letter c U+0063 e latin small letter e U+0065 h latin small letter h U+0068 i latin small letter i U+0069 n latin small letter n U+006E p latin small letter p U+0070 r latin small letter r U+0072 s latin small letter s U+0073 u latin small letter u U+0075 v latin small letter v U+0076