principal sensory nucleus of trigeminal nerve principal sensory nucleus of trigeminal nerve the principal sensory nucleus of trigeminal nerve (or chief sensory nucleus of v, main trigeminal sensory nucleus) is a group of second-order neurons which have cell bodies in the caudal pons. principal sensory nucleus of trigeminal nervethe cranial nerve nuclei schematically represented; dorsal view. motor nuclei in red; sensory in blue. (trigeminal nerve nuclei are at "v".)detailsidentifierslatinnucleus principalis nervi trigeminineuronames560ta98a14.1.05.406ta25932fma54533anatomical terms of neuroanatomy it receives information about discriminative sensation and light touch of the face as well as conscious proprioception of the jaw via first order neurons of cn v. most of the sensory information crosses the midline and travels to the contralateral ventral posteromedial nucleus (vpm) of the thalamus via the anterior trigeminothalamic tract. however, information of the oral cavity travels to the ipsilateral vpm of the thalamus via the dorsal trigeminothalamic tract. anatomy of the ponsdorsal/(tegmentum)surface cerebellopontine angle superior medullary velum sulcus limitans medial eminence facial colliculus white: sensory trapezoid body trigeminal lemniscus dorsal trigeminal tract ventral trigeminal tract medial lemniscus lateral lemniscus central tegmental tract medial longitudinal fasciculus vestibulo-oculomotor fibers white: motor inferior cerebellar peduncle vestibulocerebellar tract medial longitudinal fasciculus vestibulospinal tract medial vestibulospinal tract lateral vestibulospinal tract grey: cranial nucleiafferent: gsa trigeminal principal spinal cochlear nucleus dorsal anterior vestibular nuclei superior efferent: sve: trigeminal motor nucleus facial motor nucleus gse: abducens nucleus gve: superior salivary nucleus inferior salivary nucleus grey: other nuclei pedunculopontine nucleus apneustic center pneumotaxic center parabrachial nuclei subparabrachial nucleus medial parabrachial nucleus lateral parabrachial nucleus superior olivary nucleus locus coeruleus ventral/(base)grey pontine nuclei white: motor/descending corticospinal tract corticobulbar tract corticopontine fibers mcp pontocerebellar fibers surface basilar sulcus other grey: raphe/reticular reticular formation caudal oral tegmental paramedian raphe nuclei median the cranial nervesterminal (cn 0) nuclei septal nuclei course no significant branches olfactory (cn i) nuclei anterior olfactory nucleus course olfactory bulb olfactory tract optic (cn ii) nuclei lateral geniculate nucleus course optic chiasm optic tract oculomotor (cn iii) nuclei oculomotor nucleus edinger–westphal nucleus branches superior parasympathetic root of ciliary ganglion inferior trochlear (cn iv) nucleus branches no significant branches trigeminal (cn v) nuclei psn spinal trigeminal nucleus mn tmn course trigeminal ganglion branches ophthalmic maxillary mandibular abducens (cn vi) nucleus branches no significant branches facial (cn vii)near origin intermediate nerve geniculate insidefacial canal greater petrosal pterygopalatine ganglion nerve to the stapedius chorda tympani lingual nerve submandibular ganglion at stylomastoidforamen posterior auricular suprahyoid digastric stylohyoid parotid plexus temporal zygomatic buccal mandibular cervical nuclei facial motor nucleus solitary nucleus superior salivary nucleus vestibulocochlear (cn viii) nuclei vestibular nuclei cochlear nuclei cochlear nerve striae medullares lateral lemniscus vestibular scarpa's ganglion glossopharyngeal (cn ix)before jugular fossa ganglia superior inferior after jugular fossa tympanic tympanic plexus lesser petrosal otic ganglion stylopharyngeal branch pharyngeal branches tonsillar branches lingual branches carotid sinus nuclei nucleus ambiguus inferior salivatory nucleus solitary nucleus vagus (cn x)before jugular fossa ganglia superior inferior after jugular fossa meningeal branch auricular branch neck pharyngeal branch pharyngeal plexus superior laryngeal external internal recurrent laryngeal superior cervical cardiac thorax inferior cardiac pulmonary vagal trunks anterior posterior abdomen celiac renal hepatic anterior gastric posterior gastric nuclei nucleus ambiguus dorsal nucleus of vagus nerve solitary nucleus accessory (cn xi) nuclei nucleus ambiguus spinal accessory nucleus cranial spinal hypoglossal (cn xii) nucleus branches lingual authority control terminologia anatomica this article is issued from wikipedia. the text is licensed under creative commons - attribution - sharealike. additional terms may apply for the media files.