The thalamic fasciculus is a component of the
subthalamus
The subthalamus or prethalamus is a part of the diencephalon. Its most prominent structure is the subthalamic nucleus. The subthalamus connects to the globus pallidus, a basal nucleus of the telencephalon.
Structure
The subthalamus is locate ...
. It is synonymous with
field H1 of Forel.
Nerve fibres form a
tract containing cerebellothalamic (crossed) and pallidothalamic (uncrossed) fibres, that is insinuated between the
thalamus
The thalamus (from Greek θάλαμος, "chamber") is a large mass of gray matter located in the dorsal part of the diencephalon (a division of the forebrain). Nerve fibers project out of the thalamus to the cerebral cortex in all direction ...
and the
zona incerta
The zona incerta (ZI) is a horizontally elongated region of gray matter in the subthalamus below the thalamus. Its connections project extensively over the brain from the cerebral cortex down into the spinal cord.
Its function is unknown, thoug ...
.
The thalamic fasciculus consists of fibers from the
ansa lenticularis
The ansa lenticularis (''ansa lentiformis'' in older texts) is a part of the brain, making up the superior layer of the substantia innominata. Its fibers, derived from the medullary lamina of the lentiform nucleus, pass medially to end in the thal ...
and from the
lenticular fasciculus, coming from different portions of the
medial globus pallidus, before they jointly enter the
ventral anterior nucleus
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.
Inputs and outputs
The ventral anterior nucleus receives neuronal inputs from t ...
of the
thalamus
The thalamus (from Greek θάλαμος, "chamber") is a large mass of gray matter located in the dorsal part of the diencephalon (a division of the forebrain). Nerve fibers project out of the thalamus to the cerebral cortex in all direction ...
.
References
External links
* http://www.meddean.luc.edu/lumen/MedEd/Neuro/frames/nlDEs/nl06fr.htm
* https://web.archive.org/web/20070419222336/http://www.endotext.org/neuroendo/neuroendo3b/neuroendo3b_2.htm (see figure #12)
* https://web.archive.org/web/20080504234454/http://isc.temple.edu/neuroanatomy/lab/atlas/mdbg/
Thalamic connections
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