Posterior commissure

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Posterior Commissure

The Posterior Commissure (pronounced: poh-STEER-ee-or kuh-MISH-uh-r) is a small rounded band of white fibers crossing the midline on the dorsal aspect of the upper end of the Cerebral aqueduct.

Etymology

The term "Posterior Commissure" is derived from the Latin words "posterior" meaning "behind" and "commissura" meaning "a joining together".

Anatomy

The Posterior Commissure is located near the Pineal gland, and it connects the two cerebral hemispheres of the brain. It serves as a communication route between the right and left halves of the brain.

Function

The primary function of the Posterior Commissure is to aid in the bilateral pupillary light reflex, contributing to the control of the amount of light reaching the retina. It also plays a role in the coordination of eye movements.

Related Terms

See Also

External links

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