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a brief treatise on a subject of interest; published in the form of a booklet (同)pamphlet
an extended area of land (同)piece of land, piece of ground, parcel of land, parcel
a system of body parts that together serve some particular purpose
a drawing created by superimposing a semitransparent sheet of paper on the original image and copying on it the lines of the original image (同)trace
the act of drawing a plan or diagram or outline
the discovery and description of the course of development of something; "the tracing of genealogies"

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広大な土地(地域),(土地・海・空などの)広がり《+of+名》 / (器官の)管,(神経の)索
(おもに宗教・政治などの宣伝用の)小冊子,パンフレット
跡を追うこと,追跡;透写,複写 / 〈C〉 / 透写(複写)によってできたもの(地図・図案など),透写図

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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2013/02/13 12:19:59」(JST)

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The reticulospinal tract (or anterior reticulospinal tract) is an extrapyramidal motor tract which descends from the reticular formation in two tracts to act on the motor neurons supplying the trunk and proximal limb muscles. It is mainly involved in locomotion and postural control although it does have other effects as well. ^[1]

Functions

1. Integrates information from the motor systems to coordinate automatic movements of locomotion and posture.

2. Facilitates and inhibits voluntary movement, influences muscle tone.

3. Mediates autonomic functions

4. Modulates pain impulses

5. Influences blood flow to lateral geniculate nucleus of the thalamus

Components

The tract is divided into two parts, the medial (or pontine) and lateral (or medullary) reticulospinal tracts (MRST and LRST).

The MRST is responsible for exciting anti-gravity, extensor muscles. The fibers of this tract arise from the caudal pontine reticular nucleus and the oral pontine reticular nucleus and project to the lamina VII and lamina VIII of the spinal cord (BrainInfo)

The LRST is responsible for the inhibiting excitatory axial extensor muscles of movement. The fibers of this tract arise from the medullary reticular formation, mostly from the gigantocellular nucleus, and descend the length of the spinal cord in the anterior part of the lateral column. The tract terminates in lamina VII mostly with some fibers terminating in lamina IX of the spinal cord.

The sensory tract conveying information in the opposite direction is known as the "spinoreticular tract".

Clinical significance

If the superior colliculus is damaged, it is called decerebration and causes decerebrate rigidity.

The reticulospinal tracts also provide a pathway by which the hypothalamus can control sympathetic thoracolumbar outflow and parasympathetic sacral outflow.

References

^ FITGERALD, M J Turlough (2012). Clinical Neuroanatomy and Neuroscience. Philadelphia: Saunders Elsevier. pp. 192. ISBN 978-0-7020-3738-2.

External links

BrainInfo reticulospinal tract [1], pontine reticulospinal tract [2], and medullary reticulospinal tract [3]</a>.
http://www.lib.mcg.edu/edu/eshuphysio/program/section8/8ch6/s8ch6_29.htm
http://www.mona.uwi.edu/fpas/courses/physiology/neurophysiology/The%20Reticulospinal%20Pathway.htm

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English Journal

Acute changes in soleus H-reflex facilitation and central motor conduction after targeted physical exercises.

Harel NY1, Martinez SA2, Knezevic S2, Asselin PK2, Spungen AM3.
Journal of electromyography and kinesiology : official journal of the International Society of Electrophysiological Kinesiology.J Electromyogr Kinesiol.2015 Jun;25(3):438-43. doi: 10.1016/j.jelekin.2015.02.009. Epub 2015 Mar 2.
We tested the acute effect of exercises targeted simultaneously at cortical and brainstem circuits on neural transmission through corticobulbar connections. Corticobulbar pathways represent a potential target for rehabilitation after spinal cord injury (SCI), which tends to spare brainstem circuits
PMID 25771437

Non-specific labeling limits the utility of Cre-Lox bred CST-YFP mice for studies of corticospinal tract regeneration.

Willenberg R1,2, Steward O1,2,3,4.
The Journal of comparative neurology.J Comp Neurol.2015 May 15. doi: 10.1002/cne.23809. [Epub ahead of print]
Studies of axon regeneration in the spinal cord often assess regeneration of the corticospinal tract (CST). Emx1-Cre x Thy1-STOP-YFP mice have been reported to have yellow fluorescent protein (YFP) selectively expressed in forebrain neurons leading to genetic labeling of CST axons in the spinal cord
PMID 25976033

Trigemino-cervical-spinal reflexes after traumatic spinal cord injury.

Nardone R1, Höller Y2, Orioli A3, Brigo F4, Christova M5, Tezzon F3, Golaszewski S6, Trinka E2.
Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology.Clin Neurophysiol.2015 May;126(5):983-6. doi: 10.1016/j.clinph.2014.08.020. Epub 2014 Sep 16.
OBJECTIVE: After spinal cord injury (SCI) reorganization of spinal cord circuits occur both above and below the spinal lesion. These functional changes can be determined by assessing electrophysiological recording. We aimed at investigating the trigemino-cervical reflex (TCR) and trigemino-spinal re
PMID 25270243