Ansa lenticularis

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.2° (Spinomesencephalic tract → Superior colliculus of Midbrain tectum) 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)