- Subthalamus
Infobox Brain
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Caption = Coronal slices of human brain showing thebasal ganglia , subthalamic nucleus (STN) andsubstantia nigra (SN). STN is in subthalamus; SN is not.
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BrainInfoType = hier
BrainInfoNumber = 417
MeshName = Subthalamus
MeshNumber = A08.186.211.730.385.800
DorlandsPre = s_28
DorlandsSuf = 12767157
The subthalamus is a part of thediencephalon . cite web |url=http://www.sci.uidaho.edu/med532/subthalamus.htm |title=subthalamus |format= |work= |accessdate=]Anatomy
During development the subthalamus is continuous with the
hypothalamus , but is separated bywhite matter fibres mainly from theinternal capsule . Caudally, the subthalamus or prethalamus is separated from the thalamus by thezona limitans intrathalamica . Other nuclei of the subthalamus are thezona incerta ,thalamic reticular nucleus , and thefields of Forel .Post-natally the subthalamus lies beneath the
thalamus , hence 'sub' (meaning below) 'thalamus'. It also lies dorsolateral to thehypothalamus .Relations
The subthalamus develops efferent (output) connections to the
striatum (caudate nucleus andputamen ) in thetelencephalon , to the dorsal thalamus (medial and lateral nuclear groups) in the diencephalon, and to thered nucleus andsubstantia nigra in themesencephalon . It receives afferent (input) connections from the substantia nigra and striatum.ee also
*
Subthalamic nucleus
*prethalamus References
External links
* http://isc.temple.edu/neuroanatomy/lab/atlas/pdhn/
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