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| | Dorlands Medical Dictionary |
 | | intersegmental tract of spinal cord, anterior, fasciculus proprius anterior medullae spinalis. | | | intersegmental tract of spinal cord, posterior, fasciculus proprius posterior medullae spinalis. | | | intersegmental tract of spinal cord, ventral, fasciculus proprius anterior medullae spinalis. |
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http://www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspzQzpgzEzzSzppdocszSzuszSzcommonzSzdorlandszSzdorlandzSzdmd_t_15zPzhtm
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| | Spinothalamic tract - Wikipedia, the free encyclopedia |
| | The spinothalamic tract is the sensory pathway in the body that transmits pain, temperature, itch and crude touch. | | | The name spinothalamic tells us sensation runs up the spinal cord to the thalamus; this is true but misleading, as all sensory pathways synapse at the thalamus. | | | Unipolar neurons (those with only one long process) in the dorsal root ganglion have axons that lead from the skin, into the dorsal spinal cord where they synapse with secondary neurons in the marginal nucleus. |
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http://en.wikipedia.org/wiki/Spinothalamic_tract
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| | [No title] |
| | NA fig 9-3aVentral columnContain the 4 medial descending pathways in the spinal cord: the ventral corticospinal tract, the reticulospinal tracts, the medial vestibulospinal tract (aka descending medial longitudinal fasciculus), and the tectospinal tract. | | | Some fibers to decussate in the spinal cord; the ventral corticospinal tract influences axial and girdle muscles bilaterally, and are preferentially involved in control of the neck, shoulder, and upper trunk muscles. | | | The medial vestibular nucleus (with minor contributions from the superior and inferior vestibular nuclei) is the origin of the medial vestibulospinal tract, which descends bilaterally to the cervical and upper thoracic spinal levels and is important in controlling head position. |
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http://cpmcnet.columbia.edu/student/ssn/neuro/2005NAexam2keyterms.doc
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| | AANS.org Education and Meetings AANS Scientific Journals Neurosurgical Focus |
| | Segmental localization of the pain fibers in the lateral spinothalamic tract was described by Walker,[45] and further clinical observations confirmed this segmentation.[5,10,13,33,34,44,46] The anterolateral sensory system has a somatotropic relationship with fibers from higher levels, which laminate medially and ventrally. | | | The topographic representation within the pain tracts usually places the sacral segments most posterolaterally, with the segments lying more ventromedially as the cord is ascended, that is, the cervical segments are situated more medially and anteriorly.[15,44,45] The segments involving pain fibers from the chest and arm are located proximally to the reticulospinal tract. | | | Given its low complication rate, bilateral selective cordotomy performed with CT guidance using this new needle electrode system may prove to be the treatment of choice for cancer patients with bilateral pain of the lower trunk and extremities. |
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http://aans.org/education/journal/neurosurgical/jan97/2-1-4.asp?...
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| | Neuroanatomy |
| | The spinal nucleus and tract of the trigeminal nerve, the spinothalamic tract, fasciculus cuneatus and fasciculus gracilis, and the beginning of nucleus gracilis should also be identified on this slide. | | | Also note the medial lemniscus, the spinothalamic tracts and the lateral lemniscus which are easily defined here because the fibers and nuclei of the trapezoid body are not present in the rostral pons. | | | The substantia gelatinosa and dorsal lateral fasciculus are prominent at this level, and throughout the upper cervical cord as well, because these structures are overlapped by the spinal nucleus and the spinal tract of the trigeminal nerve which carry sensation from the ipsilateral face. |
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http://medteach.mccs.uky.edu/COM/DLOTW_cd/na_images_fr_2b.html
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| | The Anatomic Background of Low-Back Pain |
| | This neo–spinothalamic tract that we saw took advantage of the lemniscus medialis to accompany it in good time to the thalamus, provides us with somatotopic information on pain which is the first information received on the occurrence of a pain stimulus. | | | The ventral spinothalamic or neo–thalamic tract hangs onto the deutoneurons of the fasciculus gracilis and the fasciculus cuneatus that we noted do not transmit pain. | | | This pathway, that in the classical concept is divided into a ventral spinothalamic (neo–spinothalamic) tract and a dorsal spinothalamic (paleo–spinothalamic) tract, also contains spinomesencephalic fibres that transmit essentially interoceptive pain. |
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http://www.spineuniverse.com/print.php/article462.html
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| | [No title] |
| | When pain or temperature receptors are stimulated, the primary sensory neuron for this pathway conducts the nerve impulse into the spinal cord via the spinal nerve and dorsal root. | | | These two pathways (VST and LST) are our protective pathways and collectively referred to as the "spinothalamic system". | | | Its primary responsibility is to carry sensory information regarding pain and temperature to higher centers. |
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http://www.uwm.edu/~tking/king3_7.htm
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| | ICP monitors |
| | Lesion of the corticospinal tracts result in reduced tone in the affected musculature. | | | Axons in the trigeminothalamic tract also project to other thalamic nuclei similar to spinothalamic pathways. | | | Pontine and medullary reticulospinal tracts coordinate movements of muscles controlled from different segments of the spinal cord. |
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http://www.ucsf.edu/nreview/02.1-Anatomy-Brain&SC/SummaryofSystems.html
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| | Avicenna Spine and Joint Institute |
| | Innervation of the shoulder girdle muscles (sternocleidomastoid and trapezius) is functionally interconnected with the trigeminal and solitary tracts, and the reticular formation. | | | Reticulobulbar and reticulospinal connections provide pathways for reflex responses mediated by the parasympathetic and sympathetic nervous system Key Point: The glossopharyngeal nerve and the vagus nerve, the spinal trigeminal tract, the solitary tract, and the spinothalamic tract are functionally interconnected with the reticular formation | | | If the accessory nerve is injured, as by an object falling onto the back of the neck and shoulder, the two muscles will be paralyzed or weakened on the ipsilateral side of the body. |
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http://www.painmed.com/toc-ap.htm
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| | William D. Willis Jr. Home Page |
| | The two general lines of investigation in my laboratory are the analysis of ascending nociceptive pathways originating in the spinal cord and of descending control systems that allow the brain to modify activity in the ascending nociceptive pathways. | | | Rees, H., Sluka, K.A., Westlund, K.N. and Willis, W.D. The role of glutamate and GABA receptors in the generation of dorsal root reflexes by acute arthritis in the anaesthetized rat. | | | The techniques used include extracellular and sometimes intracellular recordings of responses to peripheral stimulation and of alterations produced by electrical stimuli applied at sites in the brain known to modulate behavioral responses to painful stimuli. |
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http://cellbio.utmb.edu/willis/willis.htm
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| | [No title] |
| | C. Most of the spinothalamic fibers originate from neurons in lamina V of the spinal cord. | | | All of the following spinal cord tracts may be found in the anterior white funiculus except. | | | The most critical area or vulnerable area of the radicular branches supplying the posterior spinal artery is. |
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http://web.indstate.edu/thcme/anderson/mcspinal.html
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| | Somatosensory pathways - Body |
| | Some proprioception also travels in the dorsal columns, and follows the medial lemniscus all the way to the cortex, so there is conscious awareness of body position and movement. | | | Naturally, there is, and it travels in approximately the same place - the lateral margin of the spinal cord, just ventral to the dorsal spinocerebellar tract. | | | Opiate interneurons in the spinal cord can be activated by descending projections from the brainstem (especially the raphe nuclei and periaqueductal grey), and can block pain transmission at two sites. |
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http://thalamus.wustl.edu/course/body.html
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| | Therapy Information Services - Neuroscience |
| | The spinal lemniscus (containing spinothalamic fibers) is lateral to medial lemniscus. | | | colliculus receive visual input and the tectospinal tract is though to mediate reflex movements in response to visual stimuli. | | | Some visual fibers in optic tract terminate just rostral to sup coll in the pretectal nucl, which connects with parasympathetic neurons that mediate the pupillary light reflex. |
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http://www.therapyedu.com/neuro/chap12.htm
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| | Lecture Notes: CNS Pathways - Revised 9/18/00 |
| | This tract descends uncrossed through the medulla and spinal cord in the ventral funiculus synapsing with ventral horn motor cells which facilitate extensor muscles and inhibit flexors (i.e., the opposite of rubrospinal fibers!) | | | These fibers are believed to be concerned with reflex postural movements in response to visual stimuli. | | | This link illustrates the simplest form of an ascending sensory pathway from the sensory nerve ending to the cerebral cortex. |
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http://www.fiu.edu/~condon/pathway.htm
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| | Questions/Answers to Problem Solving Session |
| | anterior funiculus (reticulospinal tracts): disruptions of muscle tone below the level of the lesion (c: below the chest; d: foot. | | | reticulospinal tracts (anterior funiculus): disruptions of muscle tone on the left side below the level of the lesion. | | | Spasticity (increased muscle tone and deep tendon reflexes) occurs as a result of damage NOT to the corticospinal tract itself but to corticobulbar and bulbospinal pathways; |
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http://www2.umdnj.edu/~neuro/neuro03/schedule/spin_ans.htm
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| | Pain pathways |
| | Results: The human VMpo is a cytoarchitectonically distinct nucleus, located posteromedial to the VPL/VPM, ventral to the anterior pulvinar and centre median, lateral to the limitans and dorsal to the medial geniculate and suprageniculate nuclei. | | | Results from the present study indicate that C1-C2; propriospinal neurons use glutamate as a neu-rotransmitter in caudal spinal segments. | | | A.D. Craig and D. Andrew, Atkinson Pain Research Laboratory, Division ofNeurosurgery, Barrow Neurological Inst, Phoenix AZ, U.S.A. Aim of Investigation: To test the hypothesis that lamina I STT cells manifest the temporal summation ("windup") observed psycho-physically in human pain sensation with repeated brief contact heat stimuli by Vierck et al. |
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http://www.painstudy.ru/wcp/pathways.htm
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| | Web QnA |
| | These tracts arise from the posterior and medial gray matter of the cord. | | | The spinocerebellar pathway has two tracts: Dorsal and Ventral. | | | How are visceral and somatic responses to pain mediated through the spinothalamic tract? |
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http://curriculum.calstatela.edu/WebQnA/webqna.pl?module=tbell2-8&action=printall
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| | NMS 5/6/98 |
| | Pain is not evidence of a nerve lesion, but a normal, healthy response spinothalamic pathway carries pain |
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http://www.rollanet.org/~mhall/NMS5-6-98web.htm
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| | Lateral Spinothalamic |
| | There are 2 pathways that together form the anterolateral system - the lateral spinothalamic tract which carries the modalities of pain and temperature, and the anterior spinothalamic tract which carries the modality of crude touch and other sensations not known for accurate localization (itch, tickle, sexual). | | | The tract continues throughout the spinal cord, with newer fibers added on medially. | | | Functionally, this pathway carries information slowly, with low degree of retention of information and disperses its messages to many other parts of the nervous system. |
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http://www.uottawa.ca/academic/med/hendelman/anatomy/latsptr.htm
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| | ICP monitors |
| | • Axons enter elongated nucleus of spinal tract of V (spinal trigeminal nucleus) which lies medial to the tract, and is continuous with the substantia gelatinosa of the cord. | | | • In the midbrain, the tract is found at the posterolateral aspect of the medial lemniscus. | | | • The lateral spinothalamic tract carries impulses concerned with pain and thermal stimuli. |
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http://www.ucsf.edu/nreview/02.1-Anatomy-Brain&SC/SpinothalamicTract.html
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| | Myelopathies - |
| | As you know, spinal cord pathways are somatotopically organized. | | | No FIBERS in the ALS at spinal level T1 contain information conveyed into the spinal cord from spinal nerves T1 or T2. | | | We know this from observations on patients following complete cord transactions and lateral cordotomy for pain management. |
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http://www.neuroanatomy.wisc.edu/SClinic/Myelo/Myelopathy.htm
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| | [No title] |
| | Spinocervical thalamic tract is believed to be this pathway. | | | The actual information the cerebellum receives by way of the dorsal spinocerebellar tract involves strength and character of muscle contraction. | | | The fibers in the spinothalamic tract carry pain and temperature impulses from the contralateral side of the body. |
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http://www.kumc.edu/research/medicine/pharmacology/CAI/webCAI/anatomy/ua07.wbc
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| | Pain |
| | The gate-control theory may explain the physiological basis for the following methods that have been used to reduce the intensity of chronic pain: electrical stimulation of the dorsal column-medial lemniscal neurons, transcutaneous electrical stimulation (applying a weak electrical stimulation to the skin), acupuncture, massage, and exercise. | | | Primary neurons of the dorsal column-medial lemniscal system send out collateral branches that synapse with association neurons in the posterior horn of the spinal cord. | | | The association neurons have an inhibitory effect on the secondary neurons of the lateral spinothalamic tract. |
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http://www.mhhe.com/biosci/ap/holehaap/student/olc2/n-reading10.html
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| | Chapter 25:Neural Mechanisms of Cardiac Pain: Author Biography" |
| | Vagal pathways to spinothalamic tract cells in upper spinal cord. | | | Chapter 25:Neural Mechanisms of Cardiac Pain: Author Biography" | | | Figure 7: Vagal Pathways to Spinothalamic Tract Cells in Upper |
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http://painconsortium.nih.gov/symptomresearch/chapter_25/figure7.htm
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| | Clinical Problem Solving: Long Spinal Pathways and Cranial Nerves |
| | Thus, a single, relatively restricted lesion that could explain all of the observed signs would be located on the dorsolateral aspect of the spinal cord and would involve the dorsal root(s), corticospinal tract in the dorsolateral funiculus, and fasciculus cuneatus. | | | Note, that lesions of the DCMLS and pyramidal tract at levels above the spinal cord could not account for the radicular pain. | | | The first clinical signs are usually the result of damage to the decussating spinothalamic fibers in the anterior white commissure and consist of a loss of pain and temperature sense confined to the dermatomes represented in those crossing fibers. |
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http://www2.umdnj.edu/~neuro/neuro03/schedule/sptrcta.htm
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| | Spinothalamic tracts (from nervous system, human) -- Encyclopædia Britannica |
| | Fibres concerned with pain, thermal sense, and light touch enter the lateral-root entry zone and then ascend or descend near the periphery of the spinal cord before entering superficial laminae of the dorsal horn—largely parts of laminae I, IV, and V. Cells in these laminae then give rise to fibres of the two spinothalamic tracts. | | | See how the brain and spinal cord use the peripheral nervous system to send messages throughout your body. | | | The human digestive system consists primarily of the digestive tract, or the series of structures and organs through which food and liquids pass during their processing into forms absorbable into the bloodstream. |
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http://www.britannica.com/eb/article-75549?tocId=75549
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| | [No title] |
| | The posterior hypothalamic nucleus is dorsal to the mammillary bodies. | | | The lateral part (ventral posterior lateral nucleus) receives medial lemniscus and spinothalamic tracts (position vibratory, touch discrimination, and pain and temperature). | | | The lateral geniculate nucleus (body) is a relay nucleus in the visual system. |
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http://www.kumc.edu/research/medicine/pharmacology/CAI/webCAI/anatomy/ua16.wbc
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| | Somatosensory I |
| | At the level of the open medulla the spinal trigeminal nucleus loses its dorsal horn‑like lamination and its name changes to subnucleus interpolaris. | | | In this disease demyelination occurs in large diameter axons of the long spinal cord pathways, i.e., the dorsal columns, dorsal spinocerebellar tracts and | | | Slides 22 and 23 contain spinal cord tissue from a patient with subacute combined sclerosis. |
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http://thalamus.wustl.edu/Neural_Systems_03/sys_web_2003/2003/20030226Lab.htm
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| | Somatosensory Pathways |
| | Recall that in vision, the striate (primary visual cortex) had columns that are sensitive to orientation & spatial frequency; similar here in the skin. | | | Somatosensory cortex is organized into columns like in vision | | | CNS; both the dorsal and spinothalamic pathways carry different information and both cross (contralateral connection to the primary somatosensory cortex in parietal lobe) but decussate (or cross) at different regions of the brain. |
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http://wise.fau.edu/~jtaft/Brains/Somatosensory/tsld006.htm
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| | 15-00: Merriam Webster's Medical Desk Dictionary |
| | Any of the four Nerve Tracts of the Spinal Cord that are arranged in pairs with one member of a pair on each side and that ascend to the | | | One on each Lateral part of the Spinal Cord that carries Nerve Impulses relating to the Senses of Touch, Pain, and Temperature. | | | Any of four Nerve Tracts which pass from the Spinal Cord to the Cerebellum and of which two are situated on each side external to the crossed CorticoSpinal Tracts: |
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http://www.geocities.com/thjuland/15-00.html
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| | Case Discussion |
| | For this patient, pain and temperature are affected while vibratory, position sense, and discriminatory sensation are preserved, which indicates that the spinothalamic tract is involved but the DC-ML system is spared. | | | It is not a paramedian lesion because the patient has no findings referable to the corticospinal tracts and the medial lemniscus. | | | Recall that the axons from the second order neurons that form the spinothalamic tract cross immediately in the spinal cord and ascend in the anterolateral spinal cord and the lateral part of the brainstem. |
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http://www-medlib.med.utah.edu/neurologicexam/cases/html_case01/case01_discussion.html
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| | APStracts 6:0337N, 1999. |
| | The purpose of the present investigation was to examine, in the primate, the role of the postsynaptic dorsal column (PSDC) system and that of the spinothalamic tract (STT) in viscerosensory processing by comparing the responses of neurons in these pathways to colorectal distension (CRD). | | | A Comparative Study of Viscerosomatic Input onto Postsynaptic Dorsal Column and Spinothalamic Tract Neurons in the Primate. | | | Experiments were done on 4 anesthetized male monkeys (Macaca fascicularis). |
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http://www.uth.tmc.edu/apstracts/1999/jn/August/337n.html
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| | Slide 38 |
| | Although the internal features at this level are similar to those in the spinal cord, some changes, particularly in the arrangement of the gray matter, have taken place. | | | The Pyramidal tract fibers arise in cerebral cortex, descend to the lower medulla, and cross here to the contralateral spinal cord where they form the Corticospinal Tract. | | | Choose: Next Slide, Previous Slide, or Main Menu |
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http://www.meddean.luc.edu/lumen/MedEd/Neuro/nlBSs/nl38s.html
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| | [No title] |
| | Its primary responsibility is to conduct information to higher centers regarding the sense of light touch. | | | The sensation of light touch is considered to be a "protective" stimulus (also referred to as protopathic). | | | As such, these collateral fibers are important in arousing the reticular formation to "fire" and therefore arouse the cerebral cortex as a whole! |
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http://www.uwm.edu/~tking/king3_6.htm
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| | UMMS Mind Brain and Behavior 1: Sensory Testing of PNS versus CNS |
| | As mentioned above, pinprick sensation is also an effective test for the integrity of small diameter peripheral nerve axons, and normally this sensation is tested along with light touch to evaluate the peripheral nervous system. | | | Light touch is carried in multiple spinal cord pathways, some crossed, some uncrossed, in addition to the posterior columns and spinothalamic tracts which we have discussed already. | | | Pain and temperature are both protopathic sensations, and in normal patients are carried exclusively in the spinothalamic tract. |
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http://courses.umassmed.edu/mbb1/2003/Sc/SensoryTesting.cfm
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| | Block I b2 Hangman |
| | The fibers of the medial reticulospinal tract have what type of influence? | | | This tract descends in the anterior funiculus, close to the surface, and exerts an excitatory influence on extensor muscles. | | | This tract is found in the cervical region, is part of the medial longitudinal fasiculus, and is involved with regulation of head position. |
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http://www.studystack.com/java-studysta/Games.jsp?studyStackId=12385
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| | NPB 112 Lecture 6: Pain |
| | Referred pain (Box A) visceral (organ) pain served by fibers also innervating skin | | | Cells in laminae I project to spinothalamic tract on contralateral side of spinal cord | | | Axons from laminae IV, V, and VI project to spinothalamic tract on contralateral side of spinal cord |
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http://noca.leaver.org/NPB112/lec06.html
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| | February 29 Lecture |
| | Neurons from the spinal nucleus decussate to form trigeminothalamic tract. | | | Descend in spinal trigeminal tract before terminating on the caudal spinal trigeminal nucleus. | | | is medial to the neo-spinothalamic tract (especially in brain stem) |
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http://pirate.shu.edu/~glendidi/neuroscience/Lectures/feb29lecture.htm
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| | [No title] |
| | Unilateral lesions affecting the second and third order neurons of the trigeminothalamic tracts may produce contralateral gross touch symptoms, but the bilateral representation of the fine touch tracts may mask these symptoms and make them clinically undetectable. | | | The SPINOTHALAMIC tracts convey action potentials generated by pain, temperature or gross touch from receprtors to the brain. | | | Receptors have their cell bodies in the dorsal root ganglia of the cord. |
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http://jan.ucc.nau.edu/~brc/WebWizard/Resources/FilesForDownloading/SOMESTH2.htm
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| | Top Page 17 |
| | The lateral spinothalamic tract carries pain and temperature sensibilities while the anterior spinothalamic tract caries the sensation of light or crude touch and possibly a crude pressure sensation. | | | None of the major textbooks of neuroanatomy describes where, in the anterolateral system, itch, tickle and sexual sensation are carried. | | | There is considerable dispute over whether the lateral and anterior spinothalamic tracts carry different sensory modalities. |
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http://www.sci.uidaho.edu/med532pathways/toppage17.htm
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| | Virtual Hospital: The Human Brain: Chapter 1: The Spinal Cord |
| | At different spinal cord levels and in different species, tracts vary in their relative positions. | | | The fibers of some tracts are widely dispersed (the spinothalamic tract being a good example) whereas others are relatively compact and discrete. | | | 1-10 Transverse section of the spinal cord at midthoracic level, showing approximate positions of the main tracts |
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http://www.vh.org/adult/provider/anatomy/BrainAnatomy/Ch1Text/Section10.html
(362 words)
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| | Protections of the spinal cord: |
| | EX: Anterior spinothalamic tract is located in the anterior white column of the spinal cord and ends in the thalamus. | | | Sensory and motor tracts: Each column contains bundles of axons called TRACTS having a common origin of destination and carrying similar information. | | | Name of the tract indicates its position in the white matter and where it begins and ends. |
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http://www.nv.cc.va.us/home/honguyen/NAS_Chapter_13.htm
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| | spinothalamic tract - General Practice Notebook |
| | The lateral spinothalamic tract carries the sensations of: | | | The anterior spinothalamic tract carries the remainder of the touch fibres not carried by the posterior columns. |
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http://www.gpnotebook.co.uk/medwebpage.cfm?ID=-1033175017
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| | Top Page 18 |
| | See diagram on page 244 Nolte-The Human Brain | | | The fibers enter the cord, synapse in the posterior gray matter, cross in the anterior white commissure and then ascend. | | | The anterior spinothalamic tract lies just ventral to the anterior horn of the gray matter. |
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http://www.sci.uidaho.edu/med532pathways/toppage18.htm
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