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Exp Brain Res. 1990;81(3):649-53.

Topography of the facial musculature within the facial (VII) motor nucleus of the neonatal rat.

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  • 1Department of Biomedical Sciences, Virginia-Maryland Regional College of Veterinary Medicine, Blacksburg, VA 24061.

Abstract

WGA-HRP, HRP and fluorescent tracers were used to determine the representation of the facial muscles in the facial motor nuclear complex (FMNC) of the newborn rat. Tracer injections of the superficial cervical and anterior mandibular portions of platysma, the orbicularis oculi muscle, the nasolabial musculature and the posterior auricular musculature revealed an adult-like topographic organization across FMNC subnuclei. Tracer delivery to individual vibrissa follicle loci of the whiskerpad also demonstrated an adult-like musculotopic organization within the lateral subnucleus.

PMID:
2226696
[PubMed - indexed for MEDLINE]
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