Ventral anterior nucleus

Ventral anterior 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 anterior thalami
NeuroNames	334
NeuroLex ID	birnlex_1232
TA98	A14.1.08.652
TA2	5688
FMA	62184
Anatomical terms of neuroanatomy [edit on Wikidata]

The ventral anterior nucleus (VA) is a nucleus of the thalamus. It acts with the anterior part of the ventral lateral nucleus to modify signals from the basal ganglia.^[1]

Inputs and outputs

The ventral anterior nucleus receives neuronal inputs from the basal ganglia. Its main afferent fibres are from the globus pallidus. The efferent fibres from this nucleus pass into the premotor cortex for initiation and planning of movement.^[2]

Functions

It helps to function in movement by providing feedback for the outputs of the basal ganglia.^[3]

Additional images

Thalamus
Thalamus

References

^ FITZGERALD, M J Turlough (2012). Clinical Neuroanatomy and Neuroscience. Philadelphia: Saunders Elsevier. pp. 284–285. ISBN 978-0-7020-3738-2.
^ FITZGERALD, M J Turlough (2012). Clinical Neuroanatomy and Neuroscience. Philadelphia: Saunders Elsevier. pp. 284–285. ISBN 978-0-7020-3738-2.
^ SWENSON, Rand. "Chapter 10 - Thalamic Organization". Review of clinical and functional neuroscience. Dartmouth Medical School. Retrieved 9 May 2012.

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

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