title: Topographic organization of peripheral trigeminal ganglionic projections in newborn rats.
abstract: Retrograde transport of fluorescent tracers (true blue and diamidino yellow) was employed to delineate the topography of the peripheral projections of trigeminal ganglion cells in newborn (less than 12 h of age) rats. Identical injections were made in adult animals for comparison. In neonates, both inter- and intradivisional topography of ganglionic projections were adult-like. Neurons which innervated mandibular fields were located posterolaterally while cells with ophthalmic or maxillary projections were restricted to the anteromedial and central parts of the ganglion, respectively. An adult-like topographic representation of the mystacial vibrissae follicles was also evident in the neonates.
mesh_terms: D000818:Animals; D000831:Animals, Newborn; D051381:Rats; D012668:Trigeminal Ganglion / Q000033:anatomy & histology*; D014276:Trigeminal Nerve / Q000033:anatomy & histology*; D014738:Vibrissae