Mentalis muscle related reflexes

The mentalis muscle (MM) arises from the incisive fossa of the mandible, raises and protrudes the lower lip. Here, we aim to characterize responses obtained from MM by supraorbital and median electrical as well as auditory stimuli in a group of 16 healthy volunteers who did not have clinical palmome...

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Bibliographic Details
Published in:Neurological sciences 2016-05, Vol.37 (5), p.789-792
Main Authors: Gündüz, Ayşegül, Uyanık, Özlem, Ertürk, Özdem, Sohtaoğlu, Melis, Kızıltan, Meral Erdemir
Format: Article
Language:English
Subjects:
Acoustic Stimulation
Aged
Brief Communication
Electromyography
Facial Muscles - physiology
Female
Healthy Volunteers
Humans
Male
Medicine
Medicine & Public Health
Middle Aged
Neurology
Neuroradiology
Neurosciences
Neurosurgery
Physical Stimulation
Psychiatry
Reaction Time - physiology
Reflex - physiology
Trigeminal Nerve - physiology
Vestibulocochlear Nerve - physiology
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Summary:The mentalis muscle (MM) arises from the incisive fossa of the mandible, raises and protrudes the lower lip. Here, we aim to characterize responses obtained from MM by supraorbital and median electrical as well as auditory stimuli in a group of 16 healthy volunteers who did not have clinical palmomental reflex. Reflex activities were recorded from the MM and orbicularis oculi (O.oc) after supraorbital and median electrical as well as auditory stimuli. Response rates over MM were consistent after each stimulus, however, mean latencies of MM response were longer than O.oc responses by all stimulation modalities. Shapes and amplitudes of responses from O.oc and MM were similar. Based on our findings, we may say that MM motoneurons have connections with trigeminal, vestibulocochlear and lemniscal pathways similar to other facial muscles and electrophysiological recording of MM responses after electrical and auditory stimulation is possible in healthy subjects.
ISSN:1590-1874
1590-3478
DOI:10.1007/s10072-015-2455-z