Superior salivary nucleus (or superior salivatory nucleus) of the facial nerve is a visceromotor cranial nerve nucleus located in the pontine tegmentum.
Parasympathetic efferent fibers of the
facial nerve (preganglionic fibers) arise according to some authors from the small cells of the facial nucleus, or according to others from a special nucleus of cells scattered in the reticular formation, dorso-medial to the facial nucleus. This is sometimes called the superior salivatory nucleus.
These preganglionic fibers are distributed partly via the
chorda tympani and lingual nerves to the submandibular ganglion, thence by postganglionic (vasodilator) fibers to the submandibular gland and sublingual glands.
Some of the
preganglionic fibers pass to the sphenopalatine ganglion via the great superficial petrosal nerve.
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Brain: rhombencephalon (hindbrain)
surface: Locus ceruleus
Trigeminal lemniscus ( Dorsal trigeminal tract, Ventral trigeminal tract)
cranial nuclei: GSA: Principal V/ Spinal V - VIII-c ( Dorsal, Anterior)/ VIII-v ( Lateral, Superior, Medial, Inferior) - SVE: Motor V - VII - GSE: VI - GVE: VII: Superior salivary nucleus
MLF, III, IV and VI ( vestibulo-oculomotor fibers, medial vestibulospinal tract)
sensory/ascending: Trapezoid body/VIII - Superior olivary nucleus
Inferior cerebellar peduncle ( Vestibulocerebellar tract)
motor/descending: Apneustic center • Pneumotaxic center ( Medial parabrachial nucleus) - Lateral parabrachial nucleus
Middle cerebellar peduncles ( Pontocerebellar fibers) - Pontine nuclei motor/descending: Corticospinal tract - Corticobulbar tract - Corticopontine fibers
Reticular formation ( Caudal, Oral, Tegmental, Paramedian) • Raphe nuclei ( Median)
surface: Posterior median sulcus - Postero-lateral sulcus - Area postrema
cranial nuclei: GVA: VII,IX,X: Solitary/ tract • SVA: Gustatory nucleus • GSE: XII • GVE: IX,X,XI: Ambiguus • SVE: X: Dorsal • IX: Inferior salivatory nucleus - MLF, III, IV and VI
sensory/ascending: Gracile nucleus • Cuneate nucleus ( Accessory cuneate nucleus) • Sensory decussation • Medial lemniscus
motor/descending: Dorsal respiratory group
motor/descending: Ventral respiratory group - Pyramid ( Motor decussation) - Inferior olivary nucleus ( Olivocerebellar tract, Rubro-olivary tract) surface: Anterior median fissure - Antero-lateral sulcus - Arcuate nucleus of medulla - Olivary body
Reticular formation ( Gigantocellular, Parvocellular, Ventral, Lateral, Paramedian) • Raphe nuclei ( Obscurus, Magnus, Pallidus)
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