It is responsible for automatic responses to pain, such as in the case of injury.
Pathwayedit
The spinoreticular tract utilizes four levels of neurons, unlike most ascending tracts which have first- through third-order neurons. The tract begins with first-order neurons, which immediately synapse with second-order neurons in the anterior (laminae VII and VIII) and posterior grey horns (lamina V) of the spinal column.[2] These neurons decussate to the opposite side (anterolateral, although in the cervical region many axons remain ipsilateral),[2] and travel up the spinal column. It terminates in the brainstem at the medullary-pontine reticular formation. Information is sent from there to the intradmedian nucleus of the thalamic intralaminar nuclei. The thalamic intralaminar nuclei project diffusely to entire cerebral cortex where pain reaches conscious level and promotes behavioral arousal. It is believed that spinoreticular tract projects to neurons having a large receptive fields that may cover wide areas of the body and play a role in the memory and in the affective (emotional) component of pain.
It is still undetermined if the spinoreticular tract possesses ipsilateral fibers in addition to those that decussate. It is hypothesized that during development the tract was bilateral, but that the ipsilateral synapses became ineffective during development.
Referencesedit
^"Chapter 25:Neural Mechanisms of Cardiac Pain: The Anterolateral System". Retrieved 2009-11-26.
spinoreticular, tract, this, article, needs, additional, citations, verification, please, help, improve, this, article, adding, citations, reliable, sources, unsourced, material, challenged, removed, find, sources, news, newspapers, books, scholar, jstor, dece. This article needs additional citations for verification Please help improve this article by adding citations to reliable sources Unsourced material may be challenged and removed Find sources Spinoreticular tract news newspapers books scholar JSTOR December 2008 Learn how and when to remove this message The spinoreticular tract is an ascending pathway in the white matter of the spinal cord positioned closely to the lateral spinothalamic tract The tract is from spinal cord to reticular formation 1 to thalamus Spinoreticular tractDetailsIdentifiersLatintractus spinoreticularisTA98A14 1 02 231TA26105FMA75693Anatomical terminology edit on Wikidata It is responsible for automatic responses to pain such as in the case of injury Pathway editThe spinoreticular tract utilizes four levels of neurons unlike most ascending tracts which have first through third order neurons The tract begins with first order neurons which immediately synapse with second order neurons in the anterior laminae VII and VIII and posterior grey horns lamina V of the spinal column 2 These neurons decussate to the opposite side anterolateral although in the cervical region many axons remain ipsilateral 2 and travel up the spinal column It terminates in the brainstem at the medullary pontine reticular formation Information is sent from there to the intradmedian nucleus of the thalamic intralaminar nuclei The thalamic intralaminar nuclei project diffusely to entire cerebral cortex where pain reaches conscious level and promotes behavioral arousal It is believed that spinoreticular tract projects to neurons having a large receptive fields that may cover wide areas of the body and play a role in the memory and in the affective emotional component of pain It is still undetermined if the spinoreticular tract possesses ipsilateral fibers in addition to those that decussate It is hypothesized that during development the tract was bilateral but that the ipsilateral synapses became ineffective during development References edit Chapter 25 Neural Mechanisms of Cardiac Pain The Anterolateral System Retrieved 2009 11 26 a b Gray s Anatomy 41st edition p 301 Saladin Kenneth S Anatomy amp Physiology The Unity of Form and Function New York McGraw Hill 2010 Mense Siegfried amp Gerwin Robert D Muscle Pain Understanding and Mechanisms New York Springer 2010 Julien N Goffaux P Arsenault P et al Widespread pain in fibromyalgia is related to a deficit of endogenous pain inhibition Pain 2005 114 1 2 295 302 Further reading editMark L Latash 2008 Neurophysiological Basis of Movement Human Kinetics p 171 ISBN 9780736063678 Richard S Snell 2005 Clinical Neuroanatomy Lippincott Williams amp Wilkins p 150 ISBN 9780781759939 nbsp This neuroanatomy article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Spinoreticular tract amp oldid 1086998383, wikipedia, wiki, book, books, library,
