Superior longitudinal muscle of the tongue
Updates to Article Attributes
The superior longitudinal muscle of the tongue is one of the 4 intrinsic muscles of the tongue which which alters the shape of the tongue mass, being entirely confined to the tongue without an attachment outside the tongue (like the extrinsic muscles of the tongue).
Gross anatomy
The muscles fibres attach proximally to the fibrous median septum and submucosal fibrous layer and attach distally to the tongue margins and overlying mucous membrane.
They lie superior to the transverse and vertical intrinsic muscles. Like all the intrinsic muscles of the tongue, it is innervated by the hypolglossalhypoglossal nerve (CN XII).
The fibres act to curl upwards the apex and lateral sides of the tongue upwards and when acting together with the inferior longitudinal muscle of the tongue it shortens and retracts the tongue when protruded (i.e. retrudes the tongue).
-<![endif]--><!--StartFragment-->The <strong>superior longitudinal muscle of the tongue</strong> is one of the 4 intrinsic muscles of the tongue which alters the shape of the tongue mass, being entirely confined to the tongue without an attachment outside the tongue (like the extrinsic muscles of the tongue).</p><h4><a title="Gross anatomy" href="/articles/gross-anatomy">Gross anatomy</a></h4><p>The muscles fibres attach proximally to the fibrous median septum and submucosal fibrous layer and attach distally to the tongue margins and overlying mucous membrane.</p><p>They lie superior to the transverse and vertical intrinsic muscles. Like all the intrinsic muscles of the tongue, it is innervated by the hypolglossal nerve (CN XII).</p><p>The fibres act to curl upwards the apex and lateral sides of the tongue and when acting together with the inferior longitudinal muscle of the tongue it shortens and retracts the tongue when protruded (i.e. retrudes the tongue).</p><p><!--EndFragment--></p>- +<![endif]--><!--StartFragment-->The <strong>superior longitudinal muscle of the tongue</strong> is one of the 4 <a href="/articles/intrinsic-muscles-of-the-tongue">intrinsic muscles of the tongue</a> which alters the shape of the <a title="Tongue" href="/articles/tongue">tongue</a> mass, being entirely confined to the tongue without an attachment outside the tongue (like the <a href="/articles/extrinsic-muscles-of-the-tongue">extrinsic muscles of the tongue</a>).</p><h4>Gross anatomy</h4><p>The muscles fibres attach proximally to the fibrous median septum and submucosal fibrous layer and attach distally to the tongue margins and overlying mucous membrane.</p><p>They lie superior to the <a href="/articles/transverse-muscle-of-the-tongue">transverse</a> and <a href="/articles/vertical-muscle-of-the-tongue">vertical</a> intrinsic muscles. Like all the intrinsic muscles of the tongue, it is innervated by the <a href="/articles/hypoglossal-nerve">hypoglossal nerve (CN XII)</a>.</p><p>The fibres act to curl the apex and lateral sides of the tongue upwards and when acting together with the <a href="/articles/inferior-longitudinal-muscle-of-the-tongue">inferior longitudinal muscle of the tongue</a> it shortens and retracts the tongue when protruded (i.e. retrudes the tongue).</p><p><!--EndFragment--></p>
References changed:
- 2. Keith L. Moore, Arthur F. Dalley. Clinically Oriented Anatomy. <a href="https://books.google.co.uk/books?vid=ISBN9780683061413">ISBN: 9780683061413</a><span class="ref_v4"></span>
- 1. Mcminn. Last's Anatomy. <a href="https://books.google.co.uk/books?vid=ISBN9780729537520">ISBN: 9780729537520</a><span class="ref_v4"></span>
Systems changed:
- Head & Neck
Sections changed:
- Anatomy
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