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

B. G. Klein, R. W. Rhoades, M. F. Jacquin

Research output: Contribution to journalArticlepeer-review

18 Scopus citations

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 adultlike 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.

Original languageEnglish
Pages (from-to)649-653
Number of pages5
JournalExperimental Brain Research
Volume81
Issue number3
DOIs
StatePublished - Aug 1990

Keywords

  • Brainstem
  • Motoneurons
  • Musculotopic organization
  • Rat
  • Whisker follicle

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