The<unk>  <unk>  is a subregion of the medullary<unk>  formation. As the name indicates, it consists mainly of so-called<unk> ant neuronal cells. This nucleus has been known to innervate the caudal hypoglossal nucleus, and responds to glutamatergic stimuli. The<unk> gantocellular nucleus excites the hypoglossal nucleus, and can play a role in the actions of the said nerve. It additionally receives connections from the periaqueductal gray, the paraventricular hypothalamic nucleus, central nucleus of the amygdala, lateral hypothalamic area, and parvocellular<unk>  nucleus. Retrograde studies have shown that the deep mesencephalic<unk>  formation and oral pontine<unk>  nucleus project to the<unk> gantocellular nucleus. The dorsal rostral section of the nucleus<unk> is<unk> gantocellularis is also involved in mediating expiration (or out-breathing) along with the parvocellular nucleus.
Gigantocellular reticular nucleus
Thalamic reticular nucleus
Paramedian reticular nucleus
Medial pulvinar nucleus
Reticulotegmental nucleus
Caudal pontine reticular nucleus
Arcuate nucleus 
Sublingual nucleus