ramus communicansn.

Brit.

/ˌreɪməs kəˈmjuːnᵻk(ə)nz/, U.S.

/ˌreɪməs kəˈmjunəkənz/

Inflections: Plural rami communicantes Brit.

/ˌreɪmʌɪ kəˌmjuːnᵻˈkantiːz/, U.S.

/ˌreɪmaɪ kəˌmjunəˈkæntiz/;

Origin: A borrowing from Latin. Etymon: Latin ramus communicans.

Etymology: < post-classical Latin ramus communicans (1711 or earlier) < classical Latin rāmus branch (see ramus n.) + commūnicāns , present participle of commūnicāre communicate v.

Anatomy and Zoology.

A branch of a nerve or blood vessel that joins another nerve or blood vessel; spec. 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.

ΘΚΠ

the world > life > the body > nervous system > nerve > parts of nerves > [noun] > branch

rame1578

surcle1578

ramus1615

sprig1634

twig1683

ramus communicans1798

rootlet1815

radicle1829

nerve twig1865

arm1870

radical1880

neuropilema1891

neuropil1894

1798 C. Bell Syst. Dissections 121 The ramus communicans tibiei is finally distributed on the outside of the foot and toes.

1811 J. Bell Anat. Human Body (ed. 3) II. 515 Whilst it [sc. the tibial nerve] is yet in the hollow behind the joint formed by the hamstring tendons, it gives off a nerve which comes out from the ham, and descends superficially on the back of the leg. This has been called ramus communicans tibialis.

1860 J. H. Power Anat. Arteries Human Body 335 The Ramus Communicans sinks between the first and second metatarsal bones, and is continuous with the terminating branch of the external plantar artery.

1893 H. St. J. Brooks in H. Morris Treat. Human Anat. v. 864 Each of the thoracic ganglia is connected to the corresponding spinal nerve by two rami communicantes, a white and a grey. The white ramus communicans consists of medullated fibres... The grey ramus communicans or revehent nerve is formed of non-medullated fibres.

1946 Gray's Anat. (ed. 29) 1078 The sensory root [of the ciliary ganglion] is formed by a ramus communicans from the nasociliary nerve.

1967 G. M. Wyburn et al. Conc. Anat. iii. 93/1 Incise one or two intercostal spaces to expose the intercostal nerves and find their slender connections with the sympathetic trunk, i.e. the grey and white rami communicantes.

2000 J. L. Andreassi Psychophysiol. (ed. 4) ii. 35 The spinal nerves connect to sympathetic ganglia by way of rami communicantes.

This entry has been updated (OED Third Edition, June 2008; most recently modified version published online March 2022).

单词	ramus communicans
释义	ramus communicansn. Brit. /ˌreɪməs kəˈmjuːnᵻk(ə)nz/, U.S. /ˌreɪməs kəˈmjunəkənz/ Inflections: Plural rami communicantes Brit. /ˌreɪmʌɪ kəˌmjuːnᵻˈkantiːz/, U.S. /ˌreɪmaɪ kəˌmjunəˈkæntiz/; Origin: A borrowing from Latin. Etymon: Latin ramus communicans. Etymology: < post-classical Latin ramus communicans (1711 or earlier) < classical Latin rāmus branch (see ramus n.) + commūnicāns , present participle of commūnicāre communicate v. Anatomy and Zoology. A branch of a nerve or blood vessel that joins another nerve or blood vessel; spec. 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. ΘΚΠ the world > life > the body > nervous system > nerve > parts of nerves > [noun] > branch rame1578 surcle1578 ramus1615 sprig1634 twig1683 ramus communicans1798 rootlet1815 radicle1829 nerve twig1865 arm1870 radical1880 neuropilema1891 neuropil1894 1798 C. Bell Syst. Dissections 121 The ramus communicans tibiei is finally distributed on the outside of the foot and toes. 1811 J. Bell Anat. Human Body (ed. 3) II. 515 Whilst it [sc. the tibial nerve] is yet in the hollow behind the joint formed by the hamstring tendons, it gives off a nerve which comes out from the ham, and descends superficially on the back of the leg. This has been called ramus communicans tibialis. 1860 J. H. Power Anat. Arteries Human Body 335 The Ramus Communicans sinks between the first and second metatarsal bones, and is continuous with the terminating branch of the external plantar artery. 1893 H. St. J. Brooks in H. Morris Treat. Human Anat. v. 864 Each of the thoracic ganglia is connected to the corresponding spinal nerve by two rami communicantes, a white and a grey. The white ramus communicans consists of medullated fibres... The grey ramus communicans or revehent nerve is formed of non-medullated fibres. 1946 Gray's Anat. (ed. 29) 1078 The sensory root [of the ciliary ganglion] is formed by a ramus communicans from the nasociliary nerve. 1967 G. M. Wyburn et al. Conc. Anat. iii. 93/1 Incise one or two intercostal spaces to expose the intercostal nerves and find their slender connections with the sympathetic trunk, i.e. the grey and white rami communicantes. 2000 J. L. Andreassi Psychophysiol. (ed. 4) ii. 35 The spinal nerves connect to sympathetic ganglia by way of rami communicantes. This entry has been updated (OED Third Edition, June 2008; most recently modified version published online March 2022). < n.1798
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