DEGLUTITIVE TONGUE ACTION - VOLUME ACCOMMODATION AND BOLUS PROPULSION
DEGLUTITIVE TONGUE ACTION - VOLUME ACCOMMODATION AND BOLUS PROPULSION
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DOI：
10.1016/0016-5085(93)90847-6
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发表时间：
1993-01-01
期刊：
影响因子：
29.4
通讯作者：
FACCHINI, F
中科院分区：
文献类型：
--
作者：
KAHRILAS, PJ;LIN, SZ;FACCHINI, F
背景：吞咽功能最好在组件中进行分析，因为离散组件故障可以通过设计的动作、姿势或生物反馈技术来补偿。本研究检查了正常的吞咽舌功能。方法：对八名志愿者进行了与腔内测压同步的双平面视频透视检查。在 1、5、10 和 20 mL 吞咽过程中，舌头表面运动的特征为沿着从舌头中心发出的七个等角射线的向心或离心运动。结果：舌头周边保持与牙槽嵴接触，而中央凹槽表现出向心和随后的离心运动，与咽壁结合，形成口咽推进室，然后排出该室的内容物进入下咽部。当最初膨胀的推进室体积收缩至测试推注体积时，产生推注内推进压力。由于咽腔动作周期时间在推注量之间相对恒定，因此在较大量时会出现剧烈排出，但相对延迟，在较小量时会出现迟缓排出。结论：吞咽舌头功能包括推注量容纳、容量调节和推注推进的主要贡献者。
Background: Swallow function is best analyzed in components because discrete component failure may be compensated for with devised maneuvers, postures, or biofeedback techniques. The present investigation examined normal deglutitive tongue function.Methods: Biplane videofluoroscopy synchronized with intraluminal manometry was performed in eight volunteers. Tongue surface motion was characterized as centripetal or centrifugal along seven equiangular rays emanating from the tongue center during 1-, 5-, 10-, and 20-mL swallows.Results: The tongue perimeter remained in contact with the alveolar ridge while the central groove exhibited centripetal and subsequent centrifugal motion that, in conjunction with the pharyngeal walls, created an oropharyngeal propulsive chamber and then expelled that chamber's contents into the hypopharynx. Intrabolus propulsive pressure was generated when the initially expansive propulsive chamber volume contracted to the test bolus volume. Because pharyngeal chamber action cycle timing was relatively constant among bolus volumes, vigorous expulsion occurred with large volumes but relatively delayed, sluggish expulsion occurred with smaller volumes.Conclusions: Deglutitive tongue functions include bolus containment, volume accommodation, and the major contributor to bolus propulsion.