Tags: Anatomical Structure, Brain.
The subthalamic nucleus is a small lens-shaped nucleus in the brain where it is from a functional point of view part of the basal ganglia system. In terms of anatomy it is the major part of subthalamus. As suggested by its name the subthalamic nucleus is located ventral to the thalamus. It is also dorsal to the substantia nigra and medial to the internal capsule. It was first described by Jules Bernard Luys in 1865 and the term corpus Luysi or Luys’ body is still sometimes used.