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Muscle Representation within the Hypoglossal Nucleus of the Chicken Studied by Means of Horseradish Peroxidase
- Source :
- Anatomia, Histologia, Embryologia: Journal of Veterinary Medicine Series C. 25:277-282
- Publication Year :
- 1996
- Publisher :
- Wiley, 1996.
-
Abstract
- Summary The distribution in the chicken of motoneurons innervating the hyolingual muscles, i.e. the Mm. hyoglossus rostralis (HR), hyoglossus obliquus (HO), ceratoglossus (CG), interceratobranchialis (CB). stylohyoideus (YH), serpihyoideus (PH) and cricohyoideus (CR), and the laryngotracheal muscles, comprising the Mm. tracheolateralis (TL), cleido-hyoideus (CL) and sternotrachealis (ST), was examined by retrograde transport of horseradish peroxidase conjugated with wheat-germ agglutinin. Labelled motoneurons are only found in the hypoglossal nucleus. The rostrocaudal distributions of motoneurons projecting to hyolingual muscles are restricted in the hypoglossal nucleus cranial to the obex, and those projecting to laryngotracheal muscles are distributed in the more caudal part of hypoglossal nucleus. Detailed analysis of the data showed that the most rostrally positioned motoneurons in the hypoglossal nucleus supplied to the PH, followed by the CG, CB. HR, YH, HO, CR, TL, CL and ST in that order, overlapping each other. In the hypoglossal nucleus motoneurons innervating the PH and YH have the smallest perikarya. Of the motoneurons in the hypoglossal nucleus, those supplying the laryngotracheal muscles (CL and TL) have the largest perikarya. Motoneurons innervating the other muscles are intermediate in size.
- Subjects :
- Male
Motor Neurons
Ceratoglossus
Hypoglossal Nerve
General Veterinary
Hypoglossal nucleus
biology
Histocytochemistry
Chemistry
Muscle, Smooth
General Medicine
Anatomy
Horseradish peroxidase
Hyoglossus
Agglutinin
biology.protein
Axoplasmic transport
Animals
Female
Laryngeal Muscles
Chickens
Horseradish Peroxidase
Subjects
Details
- ISSN :
- 14390264 and 03402096
- Volume :
- 25
- Database :
- OpenAIRE
- Journal :
- Anatomia, Histologia, Embryologia: Journal of Veterinary Medicine Series C
- Accession number :
- edsair.doi.dedup.....5c5254a996269fb0a5243fca8cd8b663