Explain the posterior nerve root, Science

Assignment Help:

Explain the Posterior Nerve Root

Posterior nerve root consists of sensory nerve fibres, having cell bodies in root ganglions and enter the spinal cord. Immediately after emerging from the intervertebral foramen, each spinal nerve divides into ramus communicants, posterior and anterior ramus. The ramus communicants are part of pre ganglionic sympathetic neurons of the autonomic nervous system.

The posterior rami pass backwards and divide into medial and lateral branches to skin, muscles etc. The anterior rami supply anterior and lateral aspects of the trunk, upper and lower limbs. In the cervical, lumbar and sacral regions, the anterior rami unite near the origins to form large masses of nerves or plexus. They divide and branch to proceed to skin, muscles, joints etc. There are 5 such large plexus. They are the cervical plexus, brachial plexus, lumbar plexus, sacral plexus and coccygeal plexus.


Related Discussions:- Explain the posterior nerve root

The fire triangle, The Fire Triangle Generally, a fire needs three thin...

The Fire Triangle Generally, a fire needs three things to burn: Fuel - something to bum, e.g.oi1. Oxygen - to maintain combustion. Ignition - something to start

Determine about the endodynamorphic soils, Determine about the endodynamorp...

Determine about the endodynamorphic soils There are instances where the effect of climate is subdued or masked by the parent material.  Soils formed under such conditions where

Determine the mechanical parameters of soil, Mechanical parameters Soil...

Mechanical parameters Soil is a heterogeneous mixture of organic matter, salts, metal oxides, water and air with silicates as dominant constituents of varying size and composit

Neanderthals, Neanderthals: These were the first human like fossils fo...

Neanderthals: These were the first human like fossils found. The Neanderthals  existed  throughout western Europe and across into the near east and central Asia from about  10

Explain yawing reflex actions - respiratory pocess, Explain Yawing Reflex A...

Explain Yawing Reflex Actions - Respiratory Pocess Yawning:  It is a deep inspiration drawn through open mouth. Low oxygen tension in the blood may be the cause of yawning.

How a rock was formed, Which would give the best indication of how a rock w...

Which would give the best indication of how a rock was formed: mineralogy and texture

Explain the pyramids - feature of medulla, Explain the Pyramids - Feature o...

Explain the Pyramids - Feature of Medulla Pyramids are the bulges of ventral surfaces, where most of the lateral corticospinal tracts originating from motor area of cerebrum de

Name two places on earth where continental glaciers exist, Name 2 places on...

Name 2 places on earth where continental glaciers exist: Antarctica And Greenland are the two place where continental glaciers exist:

Lmmunoglobulin g - classification of antibodies, lmmunoglobulin G  - class...

lmmunoglobulin G  - classification of antibodies Major defence against bacteria and their toxins. It is the major Ig - 80% in the body, can cross the capillary wall very easily

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd