Ventral posteromedial nucleus

Ventral posteromedial nucleus
Thalamic nuclei: MNG = Midline nuclear group AN = Anterior nuclear group MD = Medial dorsal nucleus VNG = Ventral nuclear group VA = Ventral anterior nucleus VL = Ventral lateral nucleus VPL = Ventral posterolateral nucleus VPM = Ventral posteromedial nucleus LNG = Lateral nuclear group PUL = Pulvinar MTh = Metathalamus LG = Lateral geniculate nucleus MG = Medial geniculate nucleus
Thalamic nuclei
Details
Identifiers
Latin	nucleus ventralis posteromedialis thalami
NeuroNames	347
NeuroLex ID	birnlex_743
TA	A14.1.08.642
FMA	62202
Anatomical terms of neuroanatomy [edit on Wikidata]

The ventral posteromedial nucleus (VPM) is a nucleus of the thalamus.

Inputs and outputs

The VPM contains synapses between second and third order neurons from the anterior (ventral) trigeminothalamic tract and posterior (dorsal) trigeminothalamic tract. These neurons convey sensory information from the face and oral cavity. Third order neurons in the trigeminothalamic systems project to the postcentral gyrus.

The VPM also receives taste afferent information from the solitary tract and projects to the cortical gustatory area.

Sources

• Kiernan, J., & Rajakumar, R. (2013). Barr's the human nervous system: an anatomical viewpoint. Lippincott Williams & Wilkins.

Additional images

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  Thalamus
  

  
  

  
  

v t e Anatomy of the diencephalon of the human brain
Epithalamus	Surface Pineal gland 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 P cell M cell K cell midline: MD Intralaminar Centromedian Midline nuclear group Interthalamic adhesion White matter Mammillothalamic tract 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 neurosecretory cell Parvocellular neurosecretory cell Supraoptic oxytocin/vasopressin other: Arcuate (dopamine/GHRH) Preoptic (GnRH) Suprachiasmatic (melatonin) Emotion Lateral Ventromedial Dorsomedial White matter afferent Medial forebrain bundle Retinohypothalamic tract efferent Mammillothalamic tract Stria terminalis Dorsal longitudinal fasciculus Pituitary Posterior is diencephalon, but anterior is glandular
Subthalamus	Subthalamic nucleus Zona incerta Nuclei campi perizonalis (Fields of Forel)

v t e Anatomy of taste
Tongue	Taste bud Lingual papilla Vallate papilla Foliate papilla Fungiform papilla Filiform papilla
Path	medulla Solitary tract VII IX X Solitary nucleus Gustatory nucleus pons Central tegmental tract Medial parabrachial nucleus Hypothalamus Amygdala thalamus Ventral posteromedial nucleus cerebrum Posterior limb of internal capsule Gustatory cortex
Other	Basic tastes

v t e Brain and spinal cord: neural tracts and fasciculi
Sensory/ ascending	DCML 1°: Pacinian corpuscle/Meissner's corpuscle → Posterior column (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° (Spinomesencephalic 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 .mw-parser-output .nobold{font-weight:normal} 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 nuclei → 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 nuclei Bidirectional: Spinocerebellar Unconscious proprioception 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)

Authority control	TA98: A14.1.08.642

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