Figure 3 - Proposed network circuit controlling the oral stage of swallowing.

C₁–C₃ – cervical spinal cord first to third segments; LCN – local circuit neuron; NTS – Nucleus tractus solitarii; NTS_is – interstitial subnucleus; NTS_int – intermediate subnucleus; NTS₁ – lateral subnucleus; NTS_v - ventral subnucleus; PBN – parabrachial nuclei; RF_iz – reticular formation intermediate zone; RF_pc – reticular formation, pars parvicellularis; VH – ventral horn; V^th – trigeminal nerve; V_m/a – motor/accessory nucleus of trigeminal nerve; V_mes – mesencephalic nucleus of trigeminal nerve; V_sens – sensory nuclei of trigeminal nerve; VII^th – facial nerve; VII_m/a – motor/accessory nucleus of facial nerve; IXth -glossopharyngeal nerve; X^th – vagus nerve; X_m – nucleus ambiguus;