Figure 4 - Proposed network circuit controlling the pharyngeal stage of swallowing.

AMB_sc,l – semicompact and loose formation of nucleus ambiguus; GVEC – general visceral efferent column; LCN – local circuit neurons; NTS – nucleus tractus solitarii; NTS_ce – central subnucleus; NTS_int/is – intermediate and interstitial subnuclei; NTS_v – ventral subnucleus; PBN – parabrachial nuclei; RF_iz – reticular formation intermediate zone; RF_pc – reticular formation pars parvicellularis; SLN – superior laryngeal nerve; V_(a) – accessory motor nucleus of trigeminal nerve; IX^th – glossopharyngeal nerve; X^th – vagus nerve; XII_m – hypoglossal nucleus