PMID: 9450832Feb 5, 1998Paper

An anatomic study of the rat larynx: establishing the rat model for neuromuscular function

Otolaryngology--head and Neck Surgery : Official Journal of American Academy of Otolaryngology-Head and Neck Surgery
K InagiC N Ford

Abstract

The gross and microscopic anatomy of the rat larynx was studied with particular attention to myology and neuromuscular structures to further validate it as a model to evaluate morphologic and functional changes induced by botulinum injection. A laryngeal alar cartilage (LAIC), alar cricoarytenoid (ACA) muscle, and a superior cricoarytenoid muscle (SCA) were identified as anatomic structures not previously described. Two portions (medial and lateral) of the thyroarytenoid muscle (TA) were distinguished. The function of the ACA was suggested to be similar to the aryepiglottis muscle in humans and the function of the SCA was suggested to be similar to the human interarytenoid muscle. The predominant pattern of motor endplate (MEP) distribution in rat laryngeal muscles (posterior cricoarytenoid, lateral cricoarytenoid, cricothyroid, and SCA) was to have MEPs concentrated mostly at the midbelly of muscle where they were distributed throughout the cross-sectional area of the midbelly. The TA and ACA differed from this pattern. The lateral TA had MEPs concentrated at the anterior third of its belly and those of the medial TA were located at the midbelly. Motor endplates in the ACA were located mostly at the posterior portion of muscle...Continue Reading

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Citations

Aug 24, 2004·European Archives of Oto-rhino-laryngology : Official Journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : Affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery·Melanie J KnightMartin A Birchall
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Aug 2, 2020·The Laryngoscope·Charles Lenell, Aaron M Johnson
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Apr 6, 2019·Journal of Speech, Language, and Hearing Research : JSLHR·Charles LenellAaron M Johnson
Jan 23, 2021·Journal of Anatomy·Raffaela LeschWilliam Tecumseh Fitch
Jun 3, 1999·Otolaryngology--head and Neck Surgery : Official Journal of American Academy of Otolaryngology-Head and Neck Surgery·K InagiD M Heisey
May 1, 2021·Brain Sciences·Charles LenellMichelle R Ciucci

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