decussation

decussation definition - medical

dec·us·sa·tion (dĕkˌə-sāˈshən, dēˌkə-)

noun
  1. A crossing in the shape of an X.
  2. An X-shaped crossing, especially of homonymous nerves or bands of nerve fibers, connecting corresponding parts on opposite sides of the brain or spinal cord.

The American Heritage® Medical Dictionary Copyright © 2009 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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