An electromyographic study of jaw opening and closing reflexes in man

The electromyographic activity of the right masseter and digastric muscles was recorded in 10 subjects. A jaw-opening reflex was observed shortly after a mechanical stimulation in subjects performing clenching and active jaw-opening exercises. The latency of this reflex activity was about 28 ms, coi...

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Bibliographic Details
Published inArchives of oral biology Vol. 27; no. 1; pp. 13 - 19
Main Authors Yamada, Y., Ash, M.M.
Format Journal Article
LanguageEnglish
Published England Elsevier Ltd 1982
Subjects
Adult
Dentistry
Electromyography
Female
Humans
Jaw - physiology
Male
Masseter Muscle - physiology
Masticatory Muscles - physiology
Movement
Reflex - physiology
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Summary:The electromyographic activity of the right masseter and digastric muscles was recorded in 10 subjects. A jaw-opening reflex was observed shortly after a mechanical stimulation in subjects performing clenching and active jaw-opening exercises. The latency of this reflex activity was about 28 ms, coinciding with the termination of the silent period of the masseter muscle. The experiments show that this opening reflex can occur without masseter spindle-unloading and may respond to low-threshold afferents.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0003-9969
1879-1506
DOI:10.1016/0003-9969(82)90171-6