The<unk>  (in Terminologia Anatomica, or<unk>  medullary reticular group in NeuroNames) sends its connections to the spinal cord in a mostly ipsilateral manner, although there is some decussation. It projects to the vermis in the anterior lobe, the pyramis and the uvula. The<unk>  nucleus also projects to the contralateral<unk> , the gigantocellular nucleus, and the nucleus ambiguous. The<unk>  reticular formation is adjacent to the abducens (VI)nucleus in the pons and adjacent to the oculomotor nucleus(III) in the midbrain. The<unk>  nucleus receives afferents mostly from the fastigial nucleus in the cerebellum and the cerebral cortex; however, the projections from the spinal cord are very sparse. The descending afferent connections come mostly from the frontal and parietal lobes; however the pontine reticular formation also sends projections to the<unk> . There are also very sparse innervations from the superior colliculus. Lesions in the<unk>  have been shown to cause a stereotyped increase in the random patterns of motion in rats. The<unk>  nuclei on either side of the brain stem have been shown to mediate the horizontal eye movements on their ipsilateral sides. It seems possible that the random motion patterns of the above rats were caused by an inability to mediate their horizontal eye movements.
Paramedian reticular nucleus
Caudal pontine reticular nucleus
Gigantocellular reticular nucleus
Thalamic reticular nucleus
Medial pulvinar nucleus
Paramedian pontine reticular formation
Reticulotegmental nucleus
Rostral ventrolateral medulla