Ansa lenticularis

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Ansa lenticularis
DA-loops in PD.jpg
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.)
Latin Ansa lentiformis
NeuroNames 444
NeuroLex ID nlx_87326
TA A14.1.08.663
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.


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

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