Summary
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.
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Aldskogious H, Thomander L (1986) Selective reinnervation of somatotopically appropriate muscles after facial nerve transection and regeneration in the neonatal rat. Brain Res 375:126–134
Arvidsson J (1982) Somatotopic organization of vibrissae afferents in the trigeminal sensory nuclei of the rat studied by transganglionic transport of HRP. J Comp Neurol 211:84–92
Ashwell KW (1982) The adult mouse facial nerve nucleus: morphology and musculotopic organization. J Anat 135:531–538
Ashwell KW, Watson CRR (1983) The development of facial motoneurones in the mouse: neuronal death and the innervation of the facial muscles. J Embryol Exp Morphol 77:117–141
Erzurumlu RS, Killackey HP (1979) Efferent connections of the brainstem trigeminal complex with the facial nucleus of the rat. J Comp Neurol 188:75–86
Hinrichsen CFL, Watson CD (1984) The facial nucleus of the rat: representation of facial muscles revealed by retrograde transport of horseradish peroxidase. Anat Rec 209:407–415
Hogg I (1928) The motor nuclei of the cranial nerves ofMus norvegicus albinus at birth. J Comp Neurol 44:449–495
Jacquin MF, Renehan WE, Klein BG, Mooney RD, Rhoades RW (1986) Functional consequences of neonatal infraorbital nerve section in rat trigeminal ganglion. J Neurosci 6:3706–3720
Klein BG, Renehan WE, Jacquin MF, Rhoades RW (1988) Anatomical consequences of neonatal infraorbital nerve transection upon the trigeminal ganglion and vibrissa follicle nerves in the adult rat. J Comp Neurol 268:469–488
Klein BG, Rhoades RW (1985) Representation of whisker follicle intrinsic musculature in the facial motor nucleus of the rat. J Comp Neurol 232:55–69
Martin MR, Lodge D (1977) Morphology of the facial nucleus of the rat. Brain Res 123:1–12
Renehan WE, Klein BG, Chiaia NL, Jacquin MF, Rhoades RW (1989) Physiological and anatomical consequences of infraorbital nerve transection in the trigeminal ganglion and trigeminal spinal tract of the adult rat. J Neurosci 9:548–557
Semba K, Egger MD (1986) The facial “motor” nerve of the rat: control of vibrissal movement and examination of motor and sensory components. J Comp Neurol 247:144–158
Thomander L (1984) Reorganization of the facial motor nucleus after peripheral nerve regeneration. Acta Otolaryngol (Stockh) 97:619–626
Watson CRR, Sakai S, Armstrong W (1982) Organization of the facial nucleus in the rat. Brain Behav Evol 20:19–28
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Klein, B.G., Rhoades, R.W. & Jacquin, M.F. Topography of the facial musculature within the facial (VII) motor nucleus of the neonatal rat. Exp Brain Res 81, 649–653 (1990). https://doi.org/10.1007/BF02423515
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DOI: https://doi.org/10.1007/BF02423515