Dentatothalamic tract

Dentatothalamic tract: Brain: Dentatothalamic tract

Latin tractus dentatothalamicus

NeuroNames hier-525

NeuroLex ID birnlex_1104

The dentatothalamic tract (or dentatorubrothalamic tract) is a tract which connects the dentate nucleus and the thalamus while sending collaterals to the red nucleus.^[1]

The term "dentatorubrothalamocortical" is sometimes used to emphasize termination in the cerebral cortex.^[2]

See also

Neuroscience portal

red nucleus

cerebellothalamic tract

References

^ Motor Systems

^ Boiten J, Lodder J (February 1990). "Ataxic hemiparesis following thalamic infarction". Stroke 21 (2): 339–40. PMID 2305412.

External links

Krauss JK, Wakhloo AK, Nobbe F, Tränkle R, Mundinger F, Seeger W (December 1995). "Lesion of dentatothalamic pathways in severe post-traumatic tremor". Neurol. Res. 17 (6): 409–16. PMID 8622792.

NIF Search - Dentatothalamic Tract via the Neuroscience Information Framework

http://isc.temple.edu/neuroanatomy/lab/atlas/papc/

v · d · eHuman brain, rhombencephalon, metencephalon: cerebellum (TA 14.1.07, GA 9.788)

Surface anatomy

Lobes

Anterior lobe · Posterior lobe (Horizontal fissure) · Flocculonodular lobe (Flocculus, Nodule)
Primary fissure

Medial/lateral

Vermis: anterior (Central lobule, Culmen, Lingula) · posterior (Folium, Tuber, Uvula) · Vallecula of cerebellum
Hemisphere: anterior (Alar central lobule) · posterior (Biventer lobule, Cerebellar tonsil)

Grey matter

Deep cerebellar nuclei

Dentate · interposed (Emboliform, Globose) · Fastigial

Cerebellar cortex

Molecular layer (Stellate cell, Basket cell)

Purkinje cell layer (Purkinje cell, Bergmann glia cell = Golgi epithelial cell)

Granule cell layer (Golgi cell, Granule cell, Unipolar brush cell)
Fibers: Mossy fibers · Climbing fiber · Parallel fiber

White matter

Internal

Arbor vitae

Peduncles

Inferior (medulla): Dorsal spinocerebellar tract · Olivocerebellar tract · Cuneocerebellar tract · Juxtarestiform body (Vestibulocerebellar tract)

Middle (pons): Pontocerebellar fibers
Superior (midbrain): Ventral spinocerebellar tract · Dentatothalamic tract · Trigeminocerebellar fibers

M: CNS

anat(n/s/m/p/4/e/b/d/c/a/f/l/g)/phys/devp

noco(m/d/e/h/v/s)/cong/tumr, sysi/epon, injr

proc, drug(N1A/2AB/C/3/4/7A/B/C/D)

v · d · eHuman brain: mesencephalon (midbrain) (TA A14.1.06, GA 9.800)

Tectum
(Dorsal)

Surface

Corpora quadrigemina: Inferior colliculi (Brachium of inferior colliculus), Superior colliculi (Brachium of superior colliculus)

Grey matter

Pretectal area

White: Sensory/ascending

Spinotectal tract · Central tegmental tract

White: Motor/descending

Tectospinal tract

Peduncle
(Ventral)

Tegmentum

White: Sensory/ascending

lemnisci (Medial, Lateral) · Ascending MLF (Vestibulo-oculomotor fibers) · Spinothalamic tract · Anterior trigeminothalamic tract · Dentatothalamic tract

White: Motor/descending

Rubrospinal tract · Rubro-olivary tract · Descending MLF

Grey: cranial nuclei

GSA (V: Mesencephalic) - GSE (III: Oculomotor, IV: Trochlear) - GVE (III: Edinger-Westphal)

Grey: other

Periaqueductal gray/Raphe nuclei (Dorsal raphe nucleus)

Ventral tegmental area • Pedunculopontine nucleus • Red nucleus
riMLF

Ventricular system

Cerebral aqueduct

Base

White: Motor/descending

Cerebral crus: Corticospinal tract · Corticobulbar tract · Corticopontine tract/Frontopontine fibers/Temporopontine fibers

Grey: Substantia nigra

Pars compacta · Pars reticulata

Surface

Superior cerebellar peduncle (Decussation of superior cerebellar peduncles) · Interpeduncular fossa

M: CNS

anat(n/s/m/p/4/e/b/d/c/a/f/l/g)/phys/devp

noco(m/d/e/h/v/s)/cong/tumr, sysi/epon, injr

proc, drug(N1A/2AB/C/3/4/7A/B/C/D)

v · d · eHuman brain: diencephalon (TA A14.1.08, GA 9.807)

Epithalamus

Surface

Pineal body · Habenula · Habenular trigone · Habenular commissure

Grey matter

Pretectal area · Habenular nuclei · Subcommissural organ

Thalamus

Surface

Stria medullaris of thalamus · Thalamic reticular nucleus · Taenia thalami

Grey matter/
nuclei

paired: AN · Ventral (VA/VL, VP/VPM/VPL) · Lateral (LD, LP, Pulvinar nuclei) · Metathalamus (MG, LG)
midline: MD · Intralaminar (Centromedian) · Midline nuclear group · Interthalamic adhesion

White matter

Mammillothalamic fasciculus · Pallidothalamic tracts (Ansa lenticularis, Lenticular fasciculus, Thalamic fasciculus) · PCML (Medial lemniscus, Trigeminal lemniscus) · Spinothalamic tract · Lateral lemniscus · Dentatothalamic tract · Acoustic radiation · Optic radiation · Subthalamic fasciculus · Anterior trigeminothalamic tract
Medullary laminae

Hypothalamus

Surface

Median eminence/Tuber cinereum · Mammillary body · Infundibulum

Grey matter

Autonomic zones

Anterior (parasympathetic/heat loss) · Posterior (sympathetic/heat conservation)

Endocrine

posterior pituitary: Paraventricular (magnocellular, parvocellular)/Supraoptic (oxytocin/vasopressin)
other: Arcuate (dopamine/GHRH) · Preoptic (GnRH) · Suprachiasmatic (melatonin)

Emotion

Lateral · Ventromedial · Dorsomedial

White matter

afferent (SN → Medial forebrain bundle) · efferent (Mammillothalamic fasciculus → AN, Stria terminalis → Amygdala, Dorsal longitudinal fasciculus → SC)

Pituitary

Posterior is diencephalon, but anterior is glandular

Subthalamus
Subthalamic nucleus · Zona incerta

Ventricular system:
Third ventricle

recesses: (Optic recess, Infundibular recess, Suprapineal recess, Pineal recess)

Hypothalamic sulcus · Tela chorioidea of third ventricle

Subfornical organ

Apertures: Interventricular/Monro
Posterior commissure

M: CNS

anat(n/s/m/p/4/e/b/d/c/a/f/l/g)/phys/devp

noco(m/d/e/h/v/s)/cong/tumr, sysi/epon, injr

proc, drug(N1A/2AB/C/3/4/7A/B/C/D)

v · d · eBrain and spinal cord: neural tracts and fasciculi

Sensory/
ascending

PCML

1°: Pacinian corpuscle/Meissner's corpuscle → Gracile fasciculus/Cuneate fasciculus → Gracile nucleus/Cuneate nucleus

2°: → sensory decussation/arcuate fibers (Posterior external arcuate fibers, Internal arcuate fibers) → Medial lemniscus/Trigeminal lemniscus → Thalamus (VPL, VPM)
3°: → Posterior limb of internal capsule → Postcentral gyrus

Anterolateral/
pain

Fast/lateral

1° (Free nerve ending → A delta fiber) → 2° (Anterior white commissure → Lateral and Anterior Spinothalamic tract → Spinal lemniscus → VPL of Thalamus) → 3° (Postcentral gyrus) → 4° (Posterior parietal cortex)
2° (Spinotectal tract → Superior colliculus of Midbrain tectum)

Slow/medial

1° (Group C nerve fiber → Spinoreticular tract → Reticular formation) → 2° (MD of Thalamus) → 3° (Cingulate cortex)

Motor/
descending

Pyramidal

flexion: Primary motor cortex → Posterior limb of internal capsule → Decussation of pyramids → Corticospinal tract (Lateral, Anterior) → Neuromuscular junction

Extrapyramidal

flexion: Primary motor cortex → Genu of internal capsule → Corticobulbar tract → Facial motor nucleus → Facial muscles

flexion: Red nucleus → Rubrospinal tract

extension: Vestibulocerebellum → Vestibular nuclei → Vestibulospinal tract

extension: Vestibulocerebellum → Reticular formation → Reticulospinal tract
Midbrain tectum → Tectospinal tract → muscles of neck

Basal ganglia

direct: 1° (Motor cortex → Striatum) → 2° (GPi) → 3° (Lenticular fasciculus/Ansa lenticularis → Thalamic fasciculus → VL of Thalamus) → 4° (Thalamocortical radiations → Supplementary motor area) → 5° (Motor cortex)

indirect: 1° (Motor cortex → Striatum) → 2° (GPe) → 3° (Subthalamic fasciculus → Subthalamic nucleus) → 4° (Subthalamic fasciculus → GPi) → 5° (Lenticular fasciculus/Ansa lenticularis → Thalamic fasciculus → VL of Thalamus) → 6° (Thalamocortical radiations → Supplementary motor area) → 7° (Motor cortex)
nigrostriatal pathway: Pars compacta → Striatum

Cerebellar

Afferent

Vestibular nucleus → Vestibulocerebellar tract → ICP → Cerebellum → Granule cell

Pontine nuclei → Pontocerebellar fibers → MCP → Deep cerebellar nuclei → Granule cell
Inferior olivary nucleus → Olivocerebellar tract → ICP → Hemisphere → Purkinje cell → Deep cerebellar nuclei

Efferent

Dentate nucleus in Lateral hemisphere/pontocerebellum → SCP → Dentatothalamic tract → Thalamus (VL) → Motor cortex

Interposed nucleus in Intermediate hemisphere/spinocerebellum → SCP → Reticular formation, or → Cerebellothalamic tract → Red nucleus → Thalamus (VL) → Motor cortex
Fastigial nucleus in Flocculonodular lobe/vestibulocerebellum → Vestibulocerebellar tract → Vestibular nucleus

Bidirectional:
Spinocerebellar

Unc. prop.

lower limb → 1° (muscle spindles → DRG) → 2° (Posterior thoracic nucleus → Dorsal/posterior spinocerebellar tract → ICP → Cerebellar vermis)
upper limb → 1° (muscle spindles → DRG) → 2° (Accessory cuneate nucleus → Cuneocerebellar tract → ICP → Anterior lobe of cerebellum)

Reflex arc

lower limb → 1° (Golgi tendon organ) → 2° (Ventral/anterior spinocerebellar tract→ SCP → Cerebellar vermis)
upper limb → 1° (Golgi tendon organ) → 2° (Rostral spinocerebellar tract → ICP → Cerebellum)

M: CNS

anat(n/s/m/p/4/e/b/d/c/a/f/l/g)/phys/devp

noco(m/d/e/h/v/s)/cong/tumr, sysi/epon, injr

proc, drug(N1A/2AB/C/3/4/7A/B/C/D)

M: PNS

anat(h/r/t/c/b/l/s/a)/phys(r)/devp/prot/nttr/nttm/ntrp

noco/auto/cong/tumr, sysi/epon, injr

proc, drug(N1B)

Categories:
Nervous system
Neuroanatomy stubs

Brain: Dentatothalamic tract
Latin	tractus dentatothalamicus
NeuroNames	hier-525
NeuroLex ID	birnlex_1104

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Look at other dictionaries:

dentatothalamic tract — a group of fibers arising chiefly in the dentate nucleus of the cerebellum and projecting to the ventral lateral nucleus of the opposite thalamus via the cranial cerebellar peduncle; impulses are then relayed to the frontal lobe. Called also… … Medical dictionary
dentatothalamic fibers — nerve fibers in the cranial cerebellar peduncle that make up the dentatothalamic tract … Medical dictionary
tract — An elongated area, e.g., path, track, way. SEE ALSO: fascicle. SYN: tractus. [L. tractus, a drawing out] alimentary t. SYN: digestive t.. anterior corticospinal t. uncrossed fibers forming a small bundle in the anterior funiculus of the … Medical dictionary
Cerebellothalamic tract — Also known as the dentatothalamic tract or the tractus cerebellothalamicus, is part of the superior cerebellar peduncle. It originates in the cerebellar nuclei, crosses completely in the decussation of the brachium conjunctivum, bypasses the red… … Wikipedia
Corticospinal tract — Pyramidal tract redirects here. This page refers to the nerve fibres underlying the pyramids. For the actual area of the brain, Pyramids, see Pyramid of medulla oblongata. Brain: Corticospinal tract Deep dissection of brain stem. Lateral view. (… … Wikipedia
Dorsal spinocerebellar tract — Posterior spinocerebellar tract is labeled in blue at right … Wikipedia
Corticobulbar tract — Brain: Corticobulbar tract Components and location of the corticobulbar tract. Latin tractus corticonuclearis NeuroNames … Wikipedia
Tectospinal tract — Diagram showing possible connection of long descending fibers from higher centers with the motor cells of the ventral column through association fibers. ( Tectospinal fasciculus labeled at center right.) … Wikipedia
Olivocerebellar tract — Brain: Olivocerebellar tract Transverse section of medulla oblongata below the middle of the olive. (Cerebello olivary fibers visible at center right.) Latin t. olivocerebellaris NeuroNames … Wikipedia
Lateral corticospinal tract — labeled in red at upper left. Latin tractus corticospinalis lateralis, fasciculus cerebrospinalis lateralis … Wikipedia

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Dentatothalamic tract

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