ArticleJournal of anatomy1999
Regional differences in fibre type composition in the human temporalis muscle.
Article in Journal of anatomy, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.
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Who cites it
21 citing papers in PubMed, 71 citations in OpenAlex.
- Desmin is not ubiquitously expressed in head and neck muscle fibers.Journal of anatomy · 2026Article
- Neuromechanical basis of region-specific differences and their implications for sport performance and injury prevention: a narrative review.European journal of applied physiology · 2025Review
- Gape drives regional variation in temporalis architectural dynamics in tufted capuchins.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2023Article
- Diagnostic Utility of Temporal Muscle Thickness as a Monitoring Tool for Muscle Wasting in Neurocritical Care.Nutrients · 2022Observational
- Review
- Muscle Fiber Type Transitions with Exercise Training: Shifting Perspectives.Sports (Basel, Switzerland) · 2021Review
- EEG-like signals can be synthesized from surface representations of single motor units of facial muscles.Experimental brain research · 2018Article
- Myosin Heavy Chain Expression Can Vary over the Length of Jaw and Leg Muscles.Cells, tissues, organs · 2016Article
- Mapping of spatial and temporal heterogeneity of plantar flexor muscle activity during isometric contraction: correlation of velocity-encoded MRI with EMG.Journal of applied physiology (Bethesda, Md. : 1985) · 2015Article
- Painful unilateral temporalis muscle enlargement: reactive masticatory muscle hypertrophy.Head and neck pathology · 2014Article
- Interference of tonic muscle activity on the EEG: a single motor unit study.Frontiers in human neuroscience · 2014Article
- Regional variation in IIM myosin heavy chain expression in the temporalis muscle of female and male baboons (Papio anubis).Archives of oral biology · 2013Article
- Myosin heavy-chain composition of the human hyoglossus muscle.Dysphagia · 2010Article
- Sihler's whole mount nerve staining technique: a review.Biotechnic & histochemistry : official publication of the Biological Stain Commission · 2010Review
- Fibre type composition of the human psoas major muscle with regard to the level of its origin.Journal of anatomy · 2009Article
- Significant roles of microtubules in mature striated muscle deduced from the correlation between tubulin and its molecular chaperone alphaB-crystallin in rat muscles.The journal of physiological sciences : JPS · 2009Article
- Immunohistochemical characterization of slow and fast myosin heavy chain composition of muscle fibres in the styloglossus muscle of the human and macaque (Macaca rhesus).Archives of oral biology · 2007Article
- Immunolabelling, histochemistry and in situ hybridisation in human skeletal muscle fibres to detect myosin heavy chain expression at the protein and mRNA level.Journal of anatomy · 2001Article
- Post-translational phosphorylation of the slow/beta myosin heavy chain isoform in adult rabbit masseter muscle.Journal of muscle research and cell motility · 2001Article
- Elevated abeta42 in skeletal muscle of Alzheimer disease patients suggests peripheral alterations of AbetaPP metabolism.The American journal of pathology · 2000Article
Corrections and comments
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Authors and funding
2 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Anatomical and electromyographic studies point to regional differences in function in the human temporalis muscle. During chewing and biting the anterior portions of the muscle are in general more intensively activated and they are capable of producing larger forces than the posterior portions. It was hypothetised that this heterogeneity in function is reflected in the fibre type composition of the muscle. The composition and surface area of different fibre types in various anteroposterior portions of the temporalis muscle were investigated in 7 cadavers employing immunohistochemistry with a panel of monoclonal antibodies against different isoforms of myosin heavy chain. Pure slow muscle fibres, type I, differed strongly in number across the muscle. In the most posterior portion of the muscle there were 24% type I fibres, in the intermediate portion 57%, and in the most anterior portion 46%. The mean fibre cross-sectional area (m-fcsa) of type I fibres was 1849 microm2, which did not differ significantly across the muscle. The proportion of pure fast muscle fibres, type IIA and IIX, remained more or less constant throughout the muscle at 13% and 11% respectively; their m-fcsa was 1309 microm2 and 1206 microm2, respectively, which did not differ significantly throughout the muscle. Pure type IIB fibres were not found. The relative proportion of hybrid fibres was 31% and did not differ significantly among the muscle portions. Fibre types I + IIA and cardiac alpha + I + IIA were the most abundant hybrid fibre types. In addition, 5% of the type I fibres had an additional myosin isoform which has only recently been described by means of electrophoresis and was named Ia. In the present study they were denoted as hybrid type I + Ia muscle fibres. It is concluded that intramuscular differences in type I fibre distribution are in accordance with regional differences in muscle function.
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