Ventral anterior nucleus

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Brain: Ventral anterior nucleus
Image:ThalamicNuclei.png
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
Latin	nucleus ventralis anterior thalami
NeuroNames	hier-317
Dorlands/Elsevier	n_11/12583946

The ventral anterior nucleus is a nucleus of the thalamus.

Inputs and outputs

receives neuronal inputs from the basal ganglia which includes the substantia nigra and the globus pallidus. It also has inputs from the cerebellum. It sends out neuronal input to the supplementary motor cortex.

Functions

It helps to function in planning movement. It initiates wanted movement and inhibits unwanted movement.

Additional images

Thalamus

Thalamus

v • d • e Brain: diencephalon
Epithalamus	Pineal body • Habenula (Habenular nuclei) • Stria medullaris • Habenular trigone
Thalamus/nuclei	paired: AN • Ventral (VA/VL, VP/VPM/VPL) • Lateral (Pulvinar) • Metathalamus (MG, LG) midline: MD • Intralaminar (Centromedian) • Midline nuclear group • Interthalamic adhesion • Medullary laminae surface: reticular tracts to thalamus: Mammillothalamic tract • Thalamic fasciculus • Lenticular fasciculus • Ansa lenticularis • Medial lemniscus • Trigeminal lemniscus • Spinothalamic tract • Lateral lemniscus
Hypothalamus	autonomic zones: Anterior (parasympathetic/heat loss) • Posterior (sympathetic/heat conservation) endocrine - posterior pituitary: magnocellular/Paraventricular/Supraoptic (oxytocin/vasopressin) endocrine - other: parvocellular/Arcuate (dopamine/GHRH) • Preoptic (GnRH) • Suprachiasmatic (melatonin) emotion: Lateral (hunger) • Ventromedial (satiety) • Dorsomedial (rage) surface: Median eminence/Tuber cinereum • Mammillary body • Infundibulum tracts: Medial forebrain bundle Pituitary: (Posterior is diencephalon, but anterior is glandular)
Subthalamus	Subthalamic nucleus • Zona incerta

Acknowledgement and Attribution Regarding Sources of Content

Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .