Three-dimensional reconstructions of two major brain stem nuclei in the precerebellar system: the pontine nuclei and the sensory trigeminal nuclei. In the publication by Brevik et. al (2001), local coordinate systems for these nuclei are defined and discussed in relation to studies of the architecture of precerebellar systems.

The movie sequences (mpeg) show the brain stem from ventral, followed by a 360 degree clockwise rotation. Use the "pause" facility of your viewer to allow closer inspection of the reconstructions.

Brainstem: 3-D reconstruction of the rat brain stem and cerebellum. The outer surface of the brain stem is represented as a transparent surface, and the outer boundaries of the cerebellum, pontine nuclei (yellow), and trigeminal sensory nuclei (green) are represented as solid surfaces. For details, cf. Fig.5 in Brevik et al., 2001

Pontine nuclei: 3-D reconstruction of the pontine nuclei, showing the distribution of pontocerebellar cells projecting to the cerebellar hemispheres in rat. The outer surface of the pontine nuclei is represented as a transparent surface, green dots represent pontine cells labeled after tracer implantation in the crown of crusI, and red dots represent pontine cells labeled after tracer implantation in the crown of crusIIa. For details, cf. Fig. 6E in Brevik et al., 2001.
Trigeminal nuclei:3-D reconstruction of the trigeminal sensory nuclei, showing the distribution of pontocerebellar cells projecting to the cerebellar hemispheres in rat. The outer surface of the trigeminal nuclei is represented as a transparent surface, red dots represent trigeminal cells labeled after tracer implantation in the crown of crusIIa. For details, cf. Fig. 6G in Brevik et al., 2001.