Posterior commissure
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
- Medical encyclopedia article on Posterior commissure
- Wikipedia's article - Posterior commissure
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