Parvocellular reticular nucleus

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Brain: Parvocellular reticular nucleus
Latin	nucleus reticularis parvocellaris
NeuroNames	hier-725

The parvocellular reticular nucleus is part of the brain located dorsolateral to the nucleus reticularis pontis caudalis.

The dorsal portion of the reticular nucleus has been shown to innervate the mesencephalic trigeminal nucleus and its surrounding area.

Also, it projects to the facial nucleus, hypoglossal nucleus and parabrachial area along with parts of the caudal parvocellular reticular formation.^[1]

This nucleus is also involved in expiration with a part of the gigantocellular nucleus.

References

↑ Ter Horst, GJ et al. Projections from the rostral parvocellular reticular formation to pontine and medullary nuclei in the rat: involvement in autonomic regulation and orofacial motor control. Neuroscience. 1991;40(3):735-58.

Dorsal

Surface

afferent:	GVA: VII,IX,X: Solitary/tract/Dorsal respiratory group SVA: Gustatory nucleus GSA: VIII-v Lateral Medial Inferior

efferent:	GSE: XII GVE: IX,X,XI: Ambiguus SVE: X: Dorsal IX: Inferior salivatory nucleus

Grey: other

White: Sensory/ascending

White: Motor/descending

Ventral

White: Motor/descending	Motor decussation Olivocerebellar tract Rubro-olivary tract

Grey matter	Ventral respiratory group Arcuate nucleus of medulla Inferior olivary nucleus Rostral ventromedial medulla

Surface	Anterior median fissure Anterolateral sulcus Olive Pyramid

Grey: Raphe/
reticular

anat (n/s/m/p/4/e/b/d/c/a/f/l/g)/phys/devp

noco (m/d/e/h/v/s)/cong/tumr, sysi/epon, injr

proc, drug (N1A/2AB/C/3/4/7A/B/C/D)

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