MindTractsAT

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Biological Mind Tracts

Home -> BiologicalLifeResearch -> MindTracts -> MindTractsAT

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This page is intended to describe set of ascending tracts

Tract Details

(generated)

TRACT SET: Ascending Tracts

unavailable

anterolateral system (ALS)

Tract overview:


paleospinothalamic system (PSTS)

Tract overview:

  • external: http://en.wikipedia.org/wiki/Spinothalamic_tract
  • function:transmits pain mainly from the peripheral slow-chronic type C pain fibers; transmits information to thalamus about pain, temperature, itch and crude touch
  • notes: conscious; cervical-anterior-toward-contralateral, thoracic, lumbar, sacral-lateral slices


anterior spinothalamic tract (ASTT)

Tract overview:

unavailable

Tract path details:

lateral spinothalamic tract (LSTT)

Tract overview:

unavailable

Tract path details:

tract of Lissauer (LST)

Tract overview:

  • external: http://en.wikipedia.org/wiki/Posterolateral_tract
  • synonyms: fasciculus of Lissauer, tract/zone of Lissauer, dorsolateral fasciculus, posterolateract tract, dorsolateral tract
  • function:fast pain; intraspinal, discriminative pain and temperature information - location, intensity and quality
  • notes: pain duration equals to stimulus duration; joins spinothalamic tract
  • generic path: {A-delta pain fibers} -> {to neocortex BA 3b}

Tract path details:

spinolimbic system (SLS)

Tract overview:

  • external:
  • function:connect spinal cord with limbic structures


spinohypothalamic tract (SHTT)

Tract overview:

  • external: http://www.ncbi.nlm.nih.gov/pubmed/8613771
  • function:provide nociceptive information to a variety of nuclei throughout the diencephalon and brainstem bilaterally
  • notes: nociception integration, from C-fibers innervating muscles
  • generic path: {body pain, temperature} -> {hypothalamus}

unavailable

Tract path details:

spinomesencephalic tract (SMST)

Tract overview:

unavailable

Tract path details:

spinosolitary tract (SST)

Tract overview:

  • external: http://en.wikipedia.org/wiki/Solitary_tract
  • function:central transmission of visceronoceptive messages
  • notes: visceronociception, short-latency nociceptive input
  • generic path: {body pain, temperature} -> {solitary nucleus}

Tract path details:

spinoreticular system (SRS)

Tract overview:


spinomedulloreticular tract (SMRT)

Tract overview:

  • external:
  • function:automatic responses to pain
  • generic path: {visceral pain} -> {MRF, entire cortex}

unavailable

Tract path details:

spinopontoreticular tract (SPRT)

Tract overview:

  • external:
  • function:automatic responses to pain
  • generic path: {visceral pain} -> {MRF, entire cortex}

unavailable

Tract path details:

spinotectal tract (STCT)

Tract overview:

  • external: http://en.wikipedia.org/wiki/Spinotectal_tract
  • function:spinovisual reflexes; head/eye movement toward stimulus source
  • notes: arises in the anterolateral column
  • generic path: {free nerve endings; crude touch, temperature, pain} -> {inferior and superior colliculi}

Tract path details:

trigeminothalamic system (TTS)

Tract overview:

unavailable


anterior trigeminothalamic tract (ATTT)

Tract overview:

Tract path details:

dorsal trigeminal tract (DTTT)

Tract overview:

  • external: http://en.wikipedia.org/wiki/Dorsal_trigeminal_tract
  • synonyms: dorsal trigeminothalamic tract, lemniscus
  • function:immediate awareness of a painful sensation; pressure and tactile discrimination sensation
  • generic path: {head MC,PC} -> {SII - BA 40,43}

Tract path details:

medial lemniscus system (MLS)

Tract overview:

unavailable


posterior column system (PCS)

Tract overview:

  • external: http://en.wikipedia.org/wiki/Posterior_column-medial_lemniscus_pathway
  • synonyms: dorsal column, Reils band, Reils ribbon
  • function:two point discrimination (fine touch, fine pressure - MC), pressure (deep receptors - PC), vibration (PC), conscious proprioception (MS)
  • notes: alpha/beta mechanoreceptors, conscious; discrimination of those sensations that an animal must explore actively

unavailable


fasciculus cuneatus tract (FCT)

Tract overview:

  • external: http://en.wikipedia.org/wiki/Cuneate_fasciculus
  • synonyms: tract of Burdach
  • function:upper body well-localized discriminative proprioception, fine touch
  • notes: muscle afferents and cutaneous mechanoreceptors (C1-T6 dermatomes); thoracic-toward-contralateral and cervical slices
  • generic path: {upper trunk, forelimb deep structures and skin} -> {neocortex BA 3b, lateral}

Tract path details:

fasciculus gracilis tract (FGT)

Tract overview:

  • external: http://en.wikipedia.org/wiki/Gracile_fasciculus
  • synonyms: tract of Goll
  • function:lower body well-localized discriminative fine touch
  • notes: sacral-toward-contralateral and lumbar slices; mostly cutaneous (proprioception via CLN)
  • generic path: {lower body, muscle afferents} -> {somatosensory cortex}

Tract path details:

spinocervical tract (SCVT)

Tract overview:

  • external: http://en.wikipedia.org/wiki/Spinocervical_pathway
  • synonyms: Morin's tract
  • function:static position, Ruffini endings
  • notes: thoracic-toward-contralateral and cervical slices
  • generic path: {receptors of thoracic and lower limbs, T7-CX} -> {somatosensory cortex}

unavailable

Tract path details:

spinocerebellar system (SCS)

Tract overview:


direct spinocerebellar system (DSCS)

Tract overview:

  • external:
  • function:spinal cord nuclei to cerebellum
  • notes: lower are dorsal and ventral SC tracts; upper are cuneocerebellar and rostral spinocerebellar tract

unavailable


cuneocerebellar tract (CSCT)

Tract overview:

  • external: http://en.wikipedia.org/wiki/Posterior_external_arcuate_fibers
  • function:relay information about limb position and movement to the cerebellum
  • notes: upper extremity equivalent of Clarkes column to CR tract - posterior spinocerebellar tract
  • generic path: {proprioceptive/fine touch/vibration, C1-C7} -> {cerebellum, vermis and paravermis of the ipsilateral posterior lobe}

unavailable

Tract path details:

dorsal spinocerebellar tract (DSCT)

Tract overview:

  • external: http://en.wikipedia.org/wiki/Dorsal_spinocerebellar_tract
  • synonyms: posterior spinocerebellar tract, Flechsigs tract
  • function:conveys proprioceptive information from proprioceptors in the skeletal muscles and joints to the cerebellum
  • notes: ipsilateral, proprioceptive and tactile information
  • generic path: {neuromuscular spindles and Golgi tendon organs, joint receptors, cutaneous receptors, lower limbs, below L3} -> {cerebellum, mainly ipsilateral anterior lobe}

Tract path details:

rostral spinocerebellar tract (RSCT)

Tract overview:

  • external: http://en.wikipedia.org/wiki/Rostral_spinocerebellar_tract
  • function:transmits information from the golgi tendon organs of the cranial half of the body to the cerebellum
  • notes: upper extremity equivalent of ventral spinocerebellar tract
  • generic path: {proprioceptive/fine touch/vibration, C1-C7} -> {cerebellum, anterior lobe}

unavailable

Tract path details:

ventral spinocerebellar tract (VSCT)

Tract overview:

  • external: http://en.wikipedia.org/wiki/Ventral_spinocerebellar_tract
  • synonyms: anterior spinocerebellar tract, Gowers tract
  • function:conveys information about postural stability of the lower limbs to cerebellum
  • notes: bilaterally, double cross, proprioceptive/fine touch/vibration; from nucleus proprius
  • generic path: {neuromuscular spindles and Golgi tendon organs, trunk, C8-L3} -> {cerebellum}

unavailable

Tract path details:

spinometencephalic system (SMTS)

Tract overview:

  • external:
  • function:spinal cord to intermediate nucleus to cerebellum

unavailable


spinoolivary tract (SOT)

Tract overview:

  • external: http://en.wikipedia.org/wiki/Spino-olivary_tract
  • synonyms: Helwegs tract
  • function:automatic movements of head, neck and upper limb
  • generic path: {proprioception information from muscles and tendons, cutaneous impulses} -> {cerebellum}

Tract path details:

spinovestibular tract (SVT)

Tract overview:

Tract path details: