ramus posterior nervi spinalis

ramus posterior nervi spinalis
[TA] posterior branch of spinal nerve: the posterior and usually smaller of the two branches into which each spinal nerve divides almost as soon as it emerges from the intervertebral foramen; the posterior branches supply the skin, muscles, joints, and bone of the posterior part of the neck and trunk. Most of these branches further subdivide into a medial and a lateral portion.

Posterior (ramus posterior nervi cervicalis) and anterior (ramus anterior nervi cervicalis) branches of the fifth cervical nerve, the nerve itself forming from the union of ventral and dorsal nerve roots, just distal to the ganglion on the dorsal root, within the intervertebral foramen.


Medical dictionary. 2011.

Look at other dictionaries:

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  • Dorsal ramus of spinal nerve — Infobox Nerve Name = PAGENAME Latin = ramus posterior nervi spinalis GraySubject = 209 GrayPage = 921 Caption = Diagram of the course and branches of a typical intercostal nerve. (Posterior division labeled at upper right.) Caption2 = Areas of… …   Wikipedia

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  • Ventral ramus of spinal nerve — Infobox Nerve Name = Ventral ramus Latin = ramus anterior nervi spinalis GraySubject = 210 GrayPage = 925 Caption = The formation of the spinal nerve from the dorsal and ventral roots. (Ventral ramus labeled at lower left.) Caption2 = Innervates …   Wikipedia

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  • rami posteriores nervorum cervicalium — [TA] posterior branches of cervical nerves: branches of the eight cervical spinal nerves, further subdividing into lateral and medial branches (see r. lateralis rami posterior nervi cervicalis and r. medialis rami posterior nervi cervicalis). See …   Medical dictionary

  • rami anteriores nervorum cervicalium — [TA] anterior branches of cervical nerves: eight nerve branches of which the upper four form the cervical plexus and the lower four form most of the brachial plexus; see also r. anterior nervi spinalis. See illustration at ramus posterior nervi… …   Medical dictionary

  • branch — An offshoot; in anatomy, one of the primary divisions of a nerve or blood vessel. A b.. See ramus, artery, nerve, vein. SYN: ramus (1) [TA]. accessory meningeal b. SYN: pterygomeningeal artery …   Medical dictionary

  • root — 1. The primary or beginning portion of any part, as of a nerve at its origin from the brainstem or spinal cord. SYN: radix (1) [TA]. 2. SYN: r. of tooth. 3. The descending underground …   Medical dictionary

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