Posterior Commissure of Brain
Tim Taylor is a senior writer at Innerbody Research focusing on human anatomy and physiology. Tim earned both his Bachelor of Science degree in Biology and his Master's degree in Teaching from the University of Pittsburgh.
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The posterior commissure of the brain is a rounded bundle of white nerve fibers that crosses the midline immediately dorsal to the cerebral aqueduct, where the aqueduct becomes continuous with the third ventricle. The precise functions served by the various fibers that cross in the posterior commissure are not well understood.
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