Anterior commissure

Changed by Craig Hacking, 27 Dec 2021

Updates to Article Attributes

Body was changed:

The anterior commissure (AC) is a transversely oriented commissural white matter tract that connects the two cerebral hemispheres along the midline. It is a very important anatomical landmark that connects different parts of the limbic system on both sides and plays a role in the interhemispheric transfer of visual, auditory, and olfactory information between temporal lobes 1, however the role of the anterior commissure is not yet well understood.

Gross anatomy

The anterior commissure corresponds to a white matter tract almost completely surrounded by gray matter that crosses the midline just ventral to the supraoptic recess of the third ventricle and the columns of the fornix. It ends in the amygdaloid nucleus of the temporal pole bilaterally 2.

  • -<p>The<strong> anterior commissure (AC)</strong> is a transversely oriented commissural white matter tract that connects the two <a href="/articles/cerebral-hemisphere">cerebral hemispheres</a> along the midline. It is a very important anatomical landmark that connects different parts of the <a href="/articles/limbic-system">limbic system</a> on both sides and plays a role in the interhemispheric transfer of visual, auditory, and olfactory information between <a title="Temporal lobe" href="/articles/temporal-lobe">temporal lobes</a> <sup>1</sup>, however the role of the anterior commissure is not yet well understood.</p><h4>Gross anatomy</h4><p>The anterior commissure corresponds to a <a href="/articles/white-matter-tracts">white matter tract</a> almost completely surrounded by gray matter that crosses the midline just ventral to the supraoptic recess of the <a href="/articles/third-ventricle">third ventricle</a> and the <a href="/articles/fornix-brain">columns of the fornix</a>. It ends in the <a href="/articles/amygdaloid-nucleus">amygdaloid nucleus</a> of the <a href="/articles/temporal-pole">temporal pole</a> bilaterally <sup>2</sup>.</p>
  • +<p>The<strong> anterior commissure (AC)</strong> is a transversely oriented commissural white matter tract that connects the two <a href="/articles/cerebral-hemisphere">cerebral hemispheres</a> along the midline. It is a very important anatomical landmark that connects different parts of the <a href="/articles/limbic-system">limbic system</a> on both sides and plays a role in the interhemispheric transfer of visual, auditory, and olfactory information between <a href="/articles/temporal-lobe">temporal lobes</a> <sup>1</sup>, however the role of the anterior commissure is not yet well understood.</p><h4>Gross anatomy</h4><p>The anterior commissure corresponds to a <a href="/articles/white-matter-tracts">white matter tract</a> almost completely surrounded by gray matter that crosses the midline just ventral to the supraoptic recess of the <a href="/articles/third-ventricle">third ventricle</a> and the <a href="/articles/fornix-brain">columns of the fornix</a>. It ends in the <a href="/articles/amygdaloid-nucleus">amygdaloid nucleus</a> of the <a href="/articles/temporal-pole">temporal pole</a> bilaterally <sup>2</sup>.</p>
Images Changes:

Image 1 Diagram ( update )

Caption was changed:
Figure 21: neuroanatomy: septal area (diagrams)

Image 2 Diagram ( create )

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