Commissure

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Commissure

Commissure (/kɒˈmɪʃər/), from the Latin commissura, meaning "a joining together or connecting", is a term used in various branches of medicine and anatomy to refer to a place where two things are joined.

Definition

In a medical context, a commissure is typically a bundle of nerve fibers that cross the midline of the brain to connect the two cerebral hemispheres. The most well-known of these is the corpus callosum, but there are several others, including the anterior commissure and the posterior commissure.

In anatomy, the term can also refer to the joining of two similar parts, such as the commissure of the lips, where the upper and lower lips meet, or the commissure of the eyelids, where the upper and lower eyelids meet.

Related Terms

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