lemniscus

The illustrations of these motor and sensory tracts in most of the neuroanatomy textbooks would not allow students to get an imaginary 3D (three dimensional) view of the related structures without referring to the cadavers.

Since the thalamus is considered a relay center for sensory tracts between the cerebrum and the spinal cord, it is easier for external stimuli to make this voyage in REM sleep and arouse the sleeping patient to partial or full consciousness.

Within the spinal cord, the pain signal is sent through more sensory tracts to the brain, which becomes aware and analyzes the pain stimulus.

Separate application of dyes to each region (anterior and posterior) of the [VIII.sup.th] nerve at Stage 28 (such as shown in [ILLUSTRATION FOR FIGURE 1A OMITTED]) resulted in differential labeling of two lateral afferent sensory tracts [ILLUSTRATION FOR FIGURE 1B OMITTED], with the projections of the vestibular sensory portion being found in a more medial position (seen in green in [ILLUSTRATION FOR FIGURE 1B OMITTED]).