Bassett Collection of Stereoscopic Images of Human Anatomy

The slight elevation produced by the superior quadrigeminal brachium (18), which extends between the lateral geniculate body and the superior colliculus, is partially preserved along the lower margin of the dissection of the pulvinar. Some of the delicate fibers of this system can be seen in the view. Immediately above the superior quadrigeminal brachium, fibers (7) are exposed which pass medially toward the pretectal region. The lateral extent of these fibers could not be traced. The pulvinar and posterolateral nuclei of the thalamus are dissected to demonstrate the vast numbers of fibers passing laterally from these into the retrolenticular part of the internal capsule as the posterior stalk of the thalamus.