Effects of Respiration on Soft Palate Movement in Feeding.
Summary of "Effects of Respiration on Soft Palate Movement in Feeding."
Cyclic soft palate elevation is temporally associated with masticatory jaw movement. However, the soft palate is normally lowered during nasal breathing to maintain retropalatal airway patency. We tested the hypothesis that the frequency and amplitude of soft palate elevation associated with mastication would be reduced during inspiration. Movements of radiopaque soft palate markers were recorded by videofluorography while 11 healthy volunteers ate solid foods. Breathing was monitored with plethysmography. Masticatory sequences were divided into processing and stage II transport cycles (food transport to the oropharynx before swallowing). In food processing, palatal elevation was less frequent and its displacement was smaller during inspiration than expiration. In stage II transport, the soft palate was elevated less frequently during inspiration than expiration. These findings suggest that masticatory soft palate movement is diminished during inspiration. The control of breathing appears to have a significant effect on soft palate elevation in mastication.
Affiliation
Journal Details
This article was published in the following journal.
Name: Journal of dental research
ISSN: 1544-0591
Pages:
Links
- PubMed Source: http://www.ncbi.nlm.nih.gov/pubmed/20811071
- DOI: http://dx.doi.org/10.1177/0022034510377336
Medical and Biotech [MESH] Definitions
Palate
The structure that forms the roof of the mouth. It consists of the anterior hard palate (PALATE, HARD) and the posterior soft palate (PALATE, SOFT).
Palatal Neoplasms
Tumors or cancer of the PALATE, including those of the hard palate, soft palate and UVULA.
Cleft Palate
Congenital fissure of the soft and/or hard palate, due to faulty fusion.
Palate, Soft
A movable fold suspended from the posterior border of the hard palate. The uvula hangs from the middle of the lower border.
Velopharyngeal Insufficiency
Failure of the SOFT PALATE to reach the posterior pharyngeal wall to close the opening between the oral and nasal cavities. Incomplete velopharyngeal closure is primarily related to surgeries (ADENOIDECTOMY; CLEFT PALATE) or an incompetent PALATOPHARYNGEAL SPHINCTER. It is characterized by hypernasal speech.
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