Thalamic fasciculus
Encyclopedia
The thalamic fasciculus is a component of the subthalamus
. It is sometimes considered synonymous with "field H1 of Forel". Nerve fibres forming a composite bundle containing cerebellothalamic (crossed) and pallidothalamic (uncrossed) fibres that is insinuated between the thalamus and zona incerta
.
The thalamic fasciculus consists of the joint fibers of the ansa lenticularis
and the lenticular fasciculus
, coming from different portions of the medial globus pallidus
, before they jointly enter the ventral lateral nucleus
of the thalamus
.
Subthalamus
The subthalamus is a part of the diencephalon. Its major part is the subthalamic nucleus. Functionally, it also encompasses the globus pallidus, which is topographically part of the telencephalon.-Anatomy:...
. It is sometimes considered synonymous with "field H1 of Forel". Nerve fibres forming a composite bundle containing cerebellothalamic (crossed) and pallidothalamic (uncrossed) fibres that is insinuated between the thalamus and zona incerta
Zona incerta
The zona incerta is a horizontally elongated region of gray matter cells in the subthalamus below the thalamus. Its connections project extensively over the brain from the cerebral cortex down into the spinal cord....
.
The thalamic fasciculus consists of the joint fibers of the ansa lenticularis
Ansa lenticularis
The ansa lenticularis is a part of the brain, making up the superior layer of the substantia innominata of Meynert...
and the lenticular fasciculus
Lenticular fasciculus
The lenticular fasciculus is a tract connecting the globus pallidus to the Thalamic fasciculus. The thalamic fasciculus runs into the Thalamus...
, coming from different portions of the medial globus pallidus
Medial globus pallidus
The medial globus pallidus is one of the output nuclei of the basal ganglia...
, before they jointly enter the ventral lateral nucleus
Ventral lateral nucleus
-Inputs and outputs:It receives neuronal inputs from the basal ganglia which includes the substantia nigra and the globus pallidus . It also has inputs from the cerebellum ....
of the thalamus
Thalamus
The thalamus is a midline paired symmetrical structure within the brains of vertebrates, including humans. It is situated between the cerebral cortex and midbrain, both in terms of location and neurological connections...
.
External links
- http://www.meddean.luc.edu/lumen/MedEd/Neuro/frames/nlDEs/nl06fr.htm
- http://www.endotext.org/neuroendo/neuroendo3b/neuroendo3b_2.htm (see figure #12)
- http://isc.temple.edu/neuroanatomy/lab/atlas/mdbg/