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Anterior trigeminothalamic tract

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Brain: Ventral trigeminothalamic tract
[[Image:|250px|center|]]
[[Image:|250px|center|]]
Latin '
Gray's subject #
Part of
Components
Artery
Vein
BrainInfo/UW hier-609
MeSH [1]

The ventral trigeminothalamic tract serves as pain, temperature, and light touch pathway from the face. It receives input from free nerve endings and Merkel’s discs. It receives discriminative tactile and pressure input from the contralateral principal sensory nucleus of CN V, which terminates in the ventral posteromedial nucleus of the thalamus. It then ascends to the contralateral sensory cortex via three neurons [2].

External links


v·d·e
Brain: rhombencephalon (hindbrain)
Metencephalon/
pons

Dorsal/
(tegmentum)

surface: Locus ceruleus

Trigeminal lemniscus (Dorsal trigeminal tract, Ventral trigeminal tract)

cranial nuclei: GSA: Principal V/Spinal V - VIII-c (Dorsal, Anterior)/VIII-v (Lateral, Superior, Medial, Inferior) - SVE: Motor V - VII - GSE: VI - GVE: VII: Superior salivary nucleus

MLF, III, IV and VI (vestibulo-oculomotor fibers, medial vestibulospinal tract)

sensory/ascending: Trapezoid body/VIII - Superior olivary nucleus

Inferior cerebellar peduncle (Vestibulocerebellar tract)

motor/descending: Apneustic center • Pneumotaxic center (Medial parabrachial nucleus) - Lateral parabrachial nucleus

Ventral/
(base)

Middle cerebellar peduncles (Pontocerebellar fibers) - Pontine nuclei
motor/descending: Corticospinal tract - Corticobulbar tract - Corticopontine fibers

Raphe/reticular

Reticular formation (Caudal, Oral, Tegmental, Paramedian) • Raphe nuclei (Median)


Myelencephalon/
medulla

Dorsal

surface: Posterior median sulcus - Postero-lateral sulcus - Area postrema

cranial nuclei: GVA: VII,IX,X: Solitary/tract • SVA: Gustatory nucleus • GSE: XII  • GVE: IX,X,XI: Ambiguus • SVE: X: Dorsal • IX: Inferior salivatory nucleus - MLF, III, IV and VI

sensory/ascending: Gracile nucleus • Cuneate nucleus (Accessory cuneate nucleus) • Sensory decussation  • Medial lemniscus

motor/descending: Dorsal respiratory group

Ventral

motor/descending: Ventral respiratory group - Pyramid (Motor decussation) - Inferior olivary nucleus (Olivocerebellar tract, Rubro-olivary tract)
surface: Anterior median fissure - Antero-lateral sulcus - Arcuate nucleus of medulla - Olivary body

Raphe/reticular

Reticular formation (Gigantocellular, Parvocellular, Ventral, Lateral, Paramedian) • Raphe nuclei (Obscurus, Magnus, Pallidus)

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