Architecture of the human jaw-closing and jaw-opening muscles
نویسندگان
چکیده
منابع مشابه
Synaptic transmission from the supratrigeminal region to jaw-closing and jaw-opening motoneurons in developing rats.
The supratrigeminal region (SupV) receives abundant orofacial sensory inputs and descending inputs from the cortical masticatory area and contains premotor neurons that target the trigeminal motor nucleus (MoV). Thus it is possible that the SupV is involved in controlling jaw muscle activity via sensory inputs during mastication. We used voltage-sensitive dye, laser photostimulation, patch-clam...
متن کاملComputational model of the movement of the human muscles of mastication during opening and closing of the jaw.
Muscle fibre bundles comprising the four major muscles of mastication in the human being were studied in cadavers. Markers were placed along each muscle fibre bundle by means of serial dissections. The 3D coordinates of each marker were tabulated and imported to Cinema 4D, a software animation program. Origins and insertions of each fibre bundle were also digitized and imported, as were the coo...
متن کاملEffects of eccentric jaw exercise on temporal summation in jaw-closing muscles of healthy subjects.
Eccentric jaw exercises has been known to cause muscle soreness but no studies have so far examined to what extent temporal summation mechanisms within the exercised muscles are changed. The purpose of the present study was to investigate the effects of an eccentric biting exercise on the temporal summation, mechanical pressure sensitivity and jaw muscle activity. A total of 15 healthy men part...
متن کاملInternal organization in the human jaw muscles.
The human jaw muscles are essential to mastication and play an important part in craniofacial growth. They contribute to dental and articular forces, deform the mandible, and, like other tissues, are subject to disorders, often manifested as pain. The literature describes how their contraction is controlled by the nervous system, and how their general structure and function contribute to cranio...
متن کاملSynchronization Among Endplate Potential Oscillations in Jaw Closing Muscles
Surface electromyograms (EMGs) in tooth clenching were recorded in a monopolar manner from paired anterior temporalis and masseter muscles of six subjects. The EPP (endplate potential) component was extracted from raw EMGs of the muscles using a digital filter. The component showed two phases, early slow wave and following oscillation. From the deflection pattern of the early EPP, the location ...
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ژورنال
عنوان ژورنال: The Anatomical Record
سال: 1997
ISSN: 0003-276X,1097-0185
DOI: 10.1002/(sici)1097-0185(199707)248:3<464::aid-ar20>3.0.co;2-m