Inferior frontal gyrus
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Updates to Article Attributes
The inferior frontal gyrus makes up the lateral and inferior surface of the frontal lobe, and is separated from the middle frontal gyrus above by the inferior frontal sulcus. It contains the frontal operuculumoperculum (hiding the anterosuperior part of the insular cortex).
Its inferior edge abuts the lateral sulcus (sylvian fissure), which gives off two branches that subdivide the inferior frontal gyrus into three parts. From anterior to posterior: the anterior ramus (aka anterior horizontal ramus) separates the pars orbitalis form the pars triangularis, and the ascending ramus (aka anterior ascending ramus) separates the pars triangularis form the pars opercularis.
Broca's area considered to be formed by the pars triangularis and pars opercularis.
-<p>The <strong>inferior frontal gyrus</strong> makes up the lateral and inferior surface of the <a title="Frontal lobe" href="/articles/frontal-lobe">frontal lobe</a>, and is separated from the <a title="Middle frontal gyrus" href="/articles/middle-frontal-gyrus">middle frontal gyrus</a> above by the <a title="Inferior frontal sulcus" href="/articles/inferior-frontal-sulcus">inferior frontal sulcus</a>. It contains the frontal operuculum (hiding the anterosuperior part of the <a title="Insular cortex" href="/articles/insular-cortex">insular cortex</a>).</p><p>Its inferior edge abuts the lateral sulcus (sylvian fissure), which gives off two branches that subdivide the inferior frontal gyrus into three parts. </p>- +<p>The <strong>inferior frontal gyrus</strong> makes up the lateral and inferior surface of the <a href="/articles/frontal-lobe">frontal lobe</a>, and is separated from the <a href="/articles/middle-frontal-gyrus">middle frontal gyrus</a> above by the <a href="/articles/inferior-frontal-sulcus">inferior frontal sulcus</a>. It contains the frontal operculum (hiding the anterosuperior part of the <a href="/articles/insular-cortex">insular cortex</a>).</p><p>Its inferior edge abuts the <a href="/articles/sylvian-fissure">lateral sulcus</a> (sylvian fissure), which gives off two branches that subdivide the inferior frontal gyrus into three parts. From anterior to posterior: the <a href="/articles/anterior-ramus-of-the-lateral-sulcus">anterior ramus</a> (aka anterior horizontal ramus) separates the <a href="/articles/peroneus-brevis-1">pars orbitalis</a> form the <a href="/articles/peroneus-brevis-1">pars triangularis</a>, and the <a href="/articles/ascending-ramus-of-the-lateral-sulcus">ascending ramus</a> (aka anterior ascending ramus) separates the pars triangularis form the <a href="/articles/peroneus-brevis-1">pars opercularis</a>.</p><p><a href="/articles/brocas-area-2">Broca's area</a> considered to be formed by the <a href="/articles/pars-triangularis">pars triangularis</a> and <a href="/articles/pars-opercularis">pars opercularis</a>. </p>
References changed:
- 1. Gray's anatomy. Churchill Livingstone. ISBN:0443025886. <a href="http://books.google.com/books?vid=ISBN0443025886">Read it at Google Books</a> - <a href="http://www.amazon.com/gp/product/0443025886">Find it at Amazon</a><span class="auto"></span>
Sections changed:
- Anatomy
Systems changed:
- Central Nervous System
Image 1 Diagram (Inferior frontal gyrus) ( create )
Image 2 Diagram (Frontal lobe) ( create )
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