|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.)
||subject #189 837
The ansa lenticularis (ansa lentiformis in older texts) is a part of the brain, making up the superior layer of the substantia innominata of Meynert. 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 from a public domain edition of Gray's Anatomy.
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