ansa lenticularis


ansa

 [an´sah] (pl. an´sae) (L.) a looplike structure.ansa cervica´lis a nerve loop in the neck attached in front and above to the hypoglossal nerve and behind to the upper cervical spinal nerves. Its hypoglossal attachment is misleading since this part of the loop ultimately rejoins the upper spinal nerves. Called also ansa hypoglossi.ansa of Henle Henle's loop.ansa hypoglos´si ansa cervicalis.ansa lenticula´ris a small nerve fiber tract arising in the globus pallidus and joining the anterior part of the ventral thalamic nucleus.ansa nephro´ni Henle's loop.an´sae nervo´rum spina´lium loops of spinal nerves joining the anterior spinal nerves.ansa peduncula´ris peduncular loop: a complex grouping of nerve fibers connecting the amygdaloid nucleus, piriform area, and anterior hypothalamus, and various thalamic nuclei.

len·tic·u·lar loop

the pallidal efferent fibers curving around the medial border of the internal capsule. Synonym(s): ansa lenticularis [TA], lenticular ansa

ansa lenticularis

An output tract from the internal segment of the globus pallidus in the basal ganglia; it curves around the posterior limb of the internal capsule and synapses in the ventral anterior and ventral lateral nuclei of the thalamus.See also: ansa