caa a22 4500 469050608 CHVBK 20180323132829.0 cr unu---uuuuu 170328e19921201xx s 000 0 eng 10.1007/BF02493474 doi (NATIONALLICENCE)springer-10.1007/BF02493474 Velar activity and timing of eustachian tube function in swallowing [Elektronische Daten] [Sandra Hamlet, Yasuhiro Momiyama] Velar motion for dry and liquid swallows was investigated. as well as velar activity in speech, based on X-ray microbeam pellet tracking data. Electromyographic recordings for tensor and levator veli palatini were obtained simultaneously. Velar pellet trajectories for swallowing were more complex than for speech, since there was a highvelocity anterior component in swallowing. For some swallows this anterior component was integrated with velar elevation (especially in liquid swallows), but in other cases initial velar elevation occurred considerably earlier (chiefly in dry swallows). The burst of tensor and levator veli palatini activity characteristic of swallowing was associated with the anterior component of velar pellet motion, but not consistently with velar elevation per se. The conventional view on timing of tensor veli palatini contraction in a swallow, which governs Eustachian tube opening, is that this is associated with velar closure. The X-ray microbeam data suggest rather that Eustachian tube ventilation is more closely associated in time to the onset of pharyngeal peristalsis, which may or may not coincide with initial velar elevation. Springer-Verlag New York Inc, 1992 Velar motion nationallicence Eustachian tube nationallicence Pharyngeal peristalsis nationallicence Degultition nationallicence Degultition disorders nationallicence Hamlet Sandra Department of Otolaryngology, Wayne State University, 48201, Detroit, Michigan, USA aut Momiyama Yasuhiro X-ray Microbeam Facility, University of Wisconsin, Madison, Wisconsin, USA aut Dysphagia Springer-Verlag 7/4(1992-12-01), 226-233 0179-051X 7:4<226 1992 7 455 https://doi.org/10.1007/BF02493474 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02493474 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Hamlet Sandra Department of Otolaryngology, Wayne State University, 48201, Detroit, Michigan, USA aut NATIONALLICENCE 700 1- Momiyama Yasuhiro X-ray Microbeam Facility, University of Wisconsin, Madison, Wisconsin, USA aut NATIONALLICENCE 773 0- Dysphagia Springer-Verlag 7/4(1992-12-01), 226-233 0179-051X 7:4<226 1992 7 455 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer