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Ansa lenticularis

From Wikipedia, the free encyclopedia
Superior layer of the substantia innominata of the brain
Ansa lenticularis
The image shows dopaminergic pathways of the human brain in normal condition (left) and Parkinsons Disease (right). Red Arrows indicate suppression of the target, blue arrows indicate stimulation of target structure. (Ansa lenticularis visible but not labeled, as red line from GPi to THA.)
Details
Identifiers
Latin Ansa lentiformis
NeuroNames 444
NeuroLex IDnlx_87326
TA98 A14.1.08.663
A14.1.09.520
A14.1.08.665
TA2 5751
FMA 62070
Anatomical terms of neuroanatomy

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 thalamus and subthalamic region, while others are said to end in the tegmentum and red nucleus. It is classified by NeuroNames as part of the subthalamus.

References

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Public domain This article incorporates text in the public domain from page 837 of the 20th edition of Gray's Anatomy (1918)

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Anatomy of the diencephalon of the human brain
Epithalamus
Surface
Grey matter
Thalamus
Surface
Grey matter/
nuclei
White matter
Hypothalamus
Surface
Grey matter
Autonomic zones
Endocrine
Emotion
White matter
Pituitary
Subthalamus
Rostral basal ganglia of the human brain and associated structures
Basal ganglia
Grey matter
Striatum
Other
White matter
Rhinencephalon
Grey matter
White matter
Other basal forebrain
Grey matter
White matter
Archicortex:
Hippocampal formation/
Hippocampus anatomy
Grey matter
White matter
Sensory
DCML
:
:
:
Anterolateral/
pain
Fast/lateral
Slow/medial
Motor
Pyramidal
Extrapyramidal
flexion:
flexion:
extension:
extension:
Basal ganglia
direct:
indirect:
nigrostriatal pathway:
Cerebellar
Afferent
Efferent
Bidirectional:
Spinocerebellar
Unconscious
proprioception
Reflex arc

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