Stapedius muscle
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The stapedius is the tiny muscle in the middle ear that attaches to the posterior aspect of the neck of the stapes, which when contracted dampens vibrations passed to the cochlea via the oval window. The muscle is anchored within the petrous temporal bone and emerges into the tympanic cavity at the pyramidal process. It is supplied by a small branch from the facial nerve.
Related Pathologypathology
Paralysis of this muscle leads to an hypersensitivity to loud noises (hyperacusis).
-<p>The<strong> stapedius</strong> is the tiny muscle in the <a href="/articles/middle-ear">middle ear</a> that attaches to the posterior aspect of the neck of the <a href="/articles/stapes">stapes</a>, which when contracted dampens vibrations passed to the <a href="/articles/cochlea">cochlea</a> via the <a href="/articles/oval-window">oval window</a>. The muscle is anchored within the <a href="/articles/temporal-bone-1">petrous temporal bone</a> and emerges into the tympanic cavity at the <a href="/articles/pyramidal-process">pyramidal process</a>. It is supplied by a small branch from the <a href="/articles/facial-nerve">facial nerve</a>.</p><h4>Related Pathology</h4><p>Paralysis of this muscle leads to an hypersensitivity to loud noises (<a href="/articles/hyperacusis">hyperacusis</a>).</p>- +<p>The<strong> stapedius</strong> is the tiny muscle in the <a href="/articles/middle-ear">middle ear</a> that attaches to the posterior aspect of the neck of the <a href="/articles/stapes">stapes</a>, which when contracted dampens vibrations passed to the <a href="/articles/cochlea">cochlea</a> via the <a href="/articles/oval-window">oval window</a>. The muscle is anchored within the <a href="/articles/temporal-bone-1">petrous temporal bone</a> and emerges into the tympanic cavity at the <a href="/articles/pyramidal-process">pyramidal process</a>. It is supplied by a small branch from the <a href="/articles/facial-nerve">facial nerve</a>.</p><h4>Related pathology</h4><p>Paralysis of this muscle leads to an hypersensitivity to loud noises (<a href="/articles/hyperacusis">hyperacusis</a>).</p>
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