2005
DOI: 10.1159/000089968
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Abstract: Proper tongue function is essential for respiration and mastication, yet we lack basic information on the anatomical organization underlying human tongue movement. Here we use microdissection, acetylcholinesterase histochemistry, silver staining of nerves, alpha bungarotoxin binding and immunohistochemistry to describe muscle fiber architecture and motor endplate (MEP) distribution of the human superior longitudinalis muscle (SL). The human SL extends from tongue base to tongue tip and is composed of fiber bun… Show more

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Cited by 37 publications
(30 citation statements)
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“…Thus, the finding of a continuous alteration in MyHC isoform proportion in the longitudinalis muscle, from slow MyHCI in the root to fast MyHCIIa and MyHCIIx in the apex, suggests subsets of motor units with different anterior to posterior contraction patterns [Stål et al, 2003]. Slaughter et al [2005] showed that the superior longitudinalis muscle, extending from the tongue base to the tip, is composed of series of muscle fibre bundles with a length of 2.8-15.7 mm and multiple motor endplates along the muscle. This in-series design of the tongue muscle fibres fits our findings of regional differences in MyHC composition and fibre size along the muscle [Stål et al, 2003].…”
Section: Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…Thus, the finding of a continuous alteration in MyHC isoform proportion in the longitudinalis muscle, from slow MyHCI in the root to fast MyHCIIa and MyHCIIx in the apex, suggests subsets of motor units with different anterior to posterior contraction patterns [Stål et al, 2003]. Slaughter et al [2005] showed that the superior longitudinalis muscle, extending from the tongue base to the tip, is composed of series of muscle fibre bundles with a length of 2.8-15.7 mm and multiple motor endplates along the muscle. This in-series design of the tongue muscle fibres fits our findings of regional differences in MyHC composition and fibre size along the muscle [Stål et al, 2003].…”
Section: Discussionmentioning
confidence: 99%
“…In adult muscles, developmental MyHCs can be located at myotendinous junctions [Cho et al, 1994] or at fibre terminations [Rosser et al, 2000]. Since most fibres in the intrinsic tongue superior longitudinalis muscles have blunt terminations [Slaughter et al, 2005], one explanation for the expression of MyHC foetal and MyHC embryonic might be that they are primarily located at fibre terminations, as previously suggested for the occurrence of developmental MyHCs in the extrinsic hyoglossus tongue muscle [Sokoloff et al, 2009]. In a recent study using quantitative PCR, Rahnert et al [2009] report the presence of low levels (5%) of mRNA coding MyHC ␣ -cardiac in the human tongue.…”
Section: Discussionmentioning
confidence: 99%
“…These kinematic features may produce a great variety of nonlinear movements and deformations without altering its tissue volume (Kier and Smith 1985 ;Kier et al 1989 ;Nishikawa 1999 ;Sokoloff 2004 ). It has been recently advocated that the tongue neuromuscular organization and motor control are no longer entirely muscle-based but use grouped motor unit-or segmented structure unit-based strategies (Slaughter et al 2005 ;Sokoloff 2004 ;Takemoto 2001 ) .…”
mentioning
confidence: 99%
“…longer on the entire muscle-based but grouped motor unit-based or segmented structure unit-based strategies (Slaughter et al, 2005;Sokoloff, 2004;Takemoto, 2001).…”
mentioning
confidence: 99%