Bolus aggregation in the oropharynx does not depend on gravity

Archives of Physical Medicine and Rehabilitation
J B Palmer

Abstract

To determine whether bolus aggregation in the oropharynx (before swallowing) depends on gravity. Before-during trial, with subjects serving as their own controls. Hospital radiology suite. Five asymptomatic adult volunteers. Videofluorography was performed while subjects ate soft and hard foods containing barium, first seated upright and then kneeling face down (quadruped position). Duration of food processing in the oral cavity, bolus aggregation in the valleculae, and pharyngeal swallow. Transport of chewed solid food from the oral cavity to the oropharynx (stage II transport) typically started several seconds before onset of swallow, regardless of head position or initial food consistency. Bolus aggregation in the valleculae (between the epiglottis and the tongue) began an average of 1.7 +/- 2.5sec before the onset of the pharyngeal swallow (p < .001). Stage II transport was driven by tongue-palate contact. Transport of chewed solid food from the oral cavity to the pharynx is driven actively by tongue-palate contact and does not depend on gravity. A bolus may accumulate in the valleculae for several seconds before the swallow.

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Citations

Mar 10, 2007·Dysphagia·Eiichi SaitohJeffrey B Palmer
Apr 14, 2011·Dysphagia·Jamie L PerryDavid P Kuehn
Apr 3, 2014·Gastroenterology Research and Practice·Arno OlthoffJens Frahm
Aug 22, 2014·Dysphagia·Haruhi InokuchiJeffrey B Palmer
Feb 10, 2009·Rinshō shinkeigaku = Clinical neurology·Eiichi Saitoh
Jan 9, 2016·Physiology & Behavior·Yoshitaka ShiinoMakoto Inoue
Dec 30, 2015·Geriatrics & Gerontology International·Kohei MatsunoTakayoshi Sakai
May 8, 2015·The Tohoku Journal of Experimental Medicine·Hitoshi KagayaJeffrey B Palmer
Oct 23, 2008·Physical Medicine and Rehabilitation Clinics of North America·Koichiro Matsuo, Jeffrey B Palmer
Mar 23, 2006·Journal of the American Geriatrics Society·Mineka YoshikawaYasumasa Akagawa
May 24, 2007·Journal of Oral Rehabilitation·D InagakiY Yamada
Nov 19, 2013·Journal of Oral Rehabilitation·H YamamotoH Kondo
Nov 20, 1998·Archives of Physical Medicine and Rehabilitation·M W Chang
Feb 18, 2010·The Japanese Dental Science Review·Koichiro Matsuo, Jeffrey B Palmer
Feb 8, 2011·Journal of Prosthodontic Research·Risako AbeTetsuya Suzuki
Sep 12, 2013·Physiology & Behavior·Shuichiro YamashitaKoichiro Matsuo
Mar 14, 2007·Physiology & Behavior·Jeffrey B PalmerHiroyuki Haishima
May 15, 2001·Critical Reviews in Oral Biology and Medicine : an Official Publication of the American Association of Oral Biologists·A Sawczuk, K M Mosier
Dec 6, 2003·Critical Reviews in Oral Biology and Medicine : an Official Publication of the American Association of Oral Biologists·Karen M Hiiemae, Jeffrey B Palmer
Jun 4, 2013·Otolaryngology--head and Neck Surgery : Official Journal of American Academy of Otolaryngology-Head and Neck Surgery·Matthew R HoffmanTimothy M McCulloch
Feb 14, 2018·Journal of Texture Studies·Katsuyoshi Nishinari, Yapeng Fang
May 22, 2018·Journal of Oral Rehabilitation·T IizumiT Ono
Aug 28, 2007·The Anatomical Record : Advances in Integrative Anatomy and Evolutionary Biology·Volodymyr Shcherbatyy, Zi-Jun Liu
Mar 21, 2020·Journal of Oral Rehabilitation·Junichi FuruyaHisatomo Kondo
Oct 3, 2017·Journal of Texture Studies·Eli M Gray-StuartJohn E Bronlund
Aug 31, 2017·Journal of Oral Rehabilitation·T IizumiM Inoue
May 16, 2001·American Journal of Physiology. Gastrointestinal and Liver Physiology·T FujikiT Yamashiro
Apr 14, 2019·Scientific Reports·Hirokazu AshigaMakoto Inoue

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