Posterior white commissure

Commissura alba posterior

  • Synonym: Dorsal white commissure
  • Related terms: Posterior white commissure; Dorsal white commissure

Definition

Muhammad A. Javaid

The posterior white commissure is a bundle of nerve fibers in the spinal cord, located posteriorly to the posterior gray commissure. It consists of transverse white matter fibers that interconnect the dorsal (posterior) white columns on the right and left sides of the spinal cord.

References

  • Snell, R.S. (2010). ‘Chapter 4: The Spinal Cord and the Ascending and Descending Tracts’, in Clinical Neuroanatomy. (7th ed.) Philadelphia: Wolters Kluwer Health/Lippincott Williams & Wilkins, pp. 141-143.

  • Ku, J. and Morrison, E.H. Neuroanatomy, Anterior White Commissure. [Updated 2021 Jul 31]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2022 Jan-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK546614/