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  • Title: [Origin of the human stapedius muscle].
    Author: Betremeev AE.
    Journal: Arkh Anat Gistol Embriol; 1990 Feb; 98(2):30-2. PubMed ID: 2353881.
    Abstract:
    More than 100 human embryos and fetuses, beginning from 6 mm (25-26 days) up to newborns have been investigated by means of histological serial sections, as well as by means of macro- micropreparation of the tympanic cavity. The m. stapedius is not independent, but takes origin from muscle fasciculi of the musculi digastrii posterior belly. The latter approaches the eminence of the future mastoid process, gives a part of muscle fasciculi into the tympanic cavity; they get through the stilomastoid cleft and run to the hammer neck, forming the m. stapedius. That is why both muscles are innervated from the facial nerve.
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