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001-es BibID:	BIBFORM048875
035-os BibID:	PMID:24076270
Első szerző:	Kecskés Szilvia (anatómus, neurobiológus)
Cím:	Termination of trigeminal primary afferents on glossopharyngeal-vagal motoneurons : possible neural networks underlying the swallowing phase and visceromotor responses of prey-catching behavior / Szilvia Kecskes, Clara Matesz, András Birinyi
Dátum:	2013
ISSN:	0361-9230
Megjegyzések:	Prey-catching behavior (PCB) of the frog consists of a sequence of coordinated activity of muscles which is modified by various sensory signals. The aim of the present study was, for the first time, to examine the involvement of the trigeminal afferents in the swallowing phase of PCB. Experiments were performed on Rana esculenta, where the trigeminal and glossopharyngeal (IX)-vagus (X) nerves were labeled simultaneously with different fluorescent dyes. Using confocal laser scanning microscope, close appositions were detected between the trigeminal afferent fibers and somatodendritic components of the IX-X motoneurons of the ambiguus nucleus (NA). Neurolucida reconstruction revealed spatial distribution of the trigeminal afferents in the functionally different parts of the NA. Thus, the visceromotor neurons supplying the stomach, the heart and the lung received about two third of the trigeminal contacts followed by the pharyngomotor and then by the laryngomotor neurons. On the other hand, individual motoneurons responsible for innervation of the viscera received less trigeminal terminals than the neurons supplying the muscles of the pharynx. The results suggest that the direct contacts between the trigeminal afferents and IX-X motoneurons presented here may be one of the morphological substrate of a very quick response during the swallowing phase of PCB. Combination of direct and indirect trigeminal inputs may contribute to optimize the ongoing motor execution.
Tárgyszavak:	Orvostudományok Egészségtudományok idegen nyelvű folyóiratközlemény külföldi lapban Nucleus ambiguus Brainstem Neuronal labeling Neurolucida reconstruction
Megjelenés:	Brain Research Bulletin. - 99C (2013), p. 109-116. -
További szerzők:	Matesz Klára (1949-) (anatómus, neurobiológus) Birinyi András (1960-) (anatómus, neurobiológus)
Pályázati támogatás:	K-67641 OTKA MTA-TKI-11008 Egyéb
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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001-es BibID:	BIBFORM062500
Első szerző:	Kovalecz Gabriella (fogszakorvos)
Cím:	Possible neural network mediating jaw opening during prey-catching behavior of the frog / Gabriella Kovalecz, Szilvia Kecskes, András Birinyi, Clara Matesz
Dátum:	2015
ISSN:	0361-9230
Megjegyzések:	The prey-catching behavior of the frog is a complex, well-timed sequence of stimulus response chain ofmovements. After visual analysis of the prey, a size dependent program is selected in the motor patterngenerator of the brainstem. Besides this predetermined feeding program, various direct and indirectsensory inputs provide flexible adjustment for the optimal contraction of the executive muscles. The aimof the present study was to investigate whether trigeminal primary afferents establish direct contactswith the jaw opening motoneurons innervated by the facial nerve.The experiments were carried out on Rana esculenta (Pelophylax esculentus), where the trigeminal andfacial nerves were labeled simultaneously with different fluorescent dyes. Using a confocal laser scanningmicroscope, close appositions were detected between trigeminal afferent fibers and somatodendriticcomponents of the facial motoneurons.Quantitative analysis revealed that the majority of close contacts were encountered on the dendritesof facial motoneurons and approximately 10% of them were located on the perikarya. We suggest thatthe identified contacts between the trigeminal afferents and facial motoneurons presented here may beone of the morphological substrate in the feedback and feedforward modulation of the rapidly changingactivity of the jaw opening muscle during the prey-catching behavior.
Tárgyszavak:	Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban Brainstem Nucleus nervi facialis Neuronal labeling Neurolucida reconstruction
Megjelenés:	Brain Research Bulletin. - 119 (2015), p. 19-24. -
További szerzők:	Kecskés Szilvia (1984-) (anatómus, neurobiológus) Birinyi András (1960-) (anatómus, neurobiológus) Matesz Klára (1949-) (anatómus, neurobiológus)
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
Borító:
Saját polcon: