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

Ecology and environment, Ecology and environment: Today, we hear people...

Ecology and environment: Today, we hear people from different walks of  life, using the terms ecology and environment. Politicians,  leaders. town planners, students and archit

Emergence of zoology , Zoology: The domestication of animals  like hors...

Zoology: The domestication of animals  like horses and elephants and their use in warfare necessitated the study of their anatomy and physiology. A survey of Vedic literature h

Explain extrasystole and compensatory pause, Explain Extrasystole and Compe...

Explain Extrasystole and Compensatory Pause During the relaxation period, cardiac muscle is in the relative refractory period i.e. sleeping but only just. If a sufficiently st

Explain in-vitro detection of antigen-antibody interaction, Explain In-Vitr...

Explain In-Vitro Detection of Antigen-Antibody Interaction Any infection caused, requires a proper treatment. This can be achieved only if the correct organism is identified. S

Define the structure of ear - the organ of hearing, Define the Structure of...

Define the Structure of Ear - The Organ of Hearing The human ear consists of three sections: the outer ear, the middle ear and the inner ear as illustrated in Figure. The oute

What is solubility, What is Solubility Solubility:  Proteins behave d...

What is Solubility Solubility:  Proteins behave differently in solution. Globular proteins are generally more  soluble  in  aqueous medium  in  comparison  to  elongated fibr

Explain the history and milestones of the concept of blood, Explain the His...

Explain the History and Milestones of the Concept of Blood In this section, we will discuss about the historical development of the concept of blood and blood cells. This discu

Explain protein reserve - functions of plasma proteins, Explain Protein Res...

Explain Protein Reserve - Functions of Plasma Proteins Plasma proteins provide a reserve, which can be drawn upon for vital functions in the situations of starvation and protei

Fission, Fission, and fusion energy: 'The Italian navigator has arrived...

Fission, and fusion energy: 'The Italian navigator has arrived in  the new world'  This coded message announced the beginning of the atoyic age on 2nd December? 1942. The 'n

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