Neck of posterior horn - Spinal cord - Spinal laminae - e-Anatomy
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Neck of posterior horn

Cervix cornus posterioris

  • Latin synonym: Cervix columnae posterioris
  • Related terms: Spinal lamina V

Definition

The neck of posterior horn refers to the region, that lies ventral to the head and corresponds with the Rexed lamina V.  The nucleus proprius, which lies mainly in the head (Rexed laminae III and IV), extends slightly into the neck of posterior horn (lamina V) as well.

The neck (and its constituent nucleus proprius) extends throughout the length of the spinal cord. The nucleus proprius receives sensory information of vibration, proprioception and 2-point discrimination, from collaterals arising from the ascending first order neurons of the dorsal column (gracile and cuneate fasciculi).

References

Text written by Muhammad A. Javaid, MD, PhD © 2022 IMAIOS.

  • 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. 137-142.

  • Byrne, J.H. and Dafny, N. ‘Chapter 3: Anatomy of the Spinal Cord. [Content reviewed and revised 07 Oct 2020]. In Neuroanatomy Online, an open-access electronic laboratory for the neurosciences. McGovern Medical School at UTHealth; Accessed 2022 Oct 22. Available from: https://nba.uth.tmc.edu/neuroscience/m/s2/chapter03.html

  • Brown, A.G. (1982). Review article the dorsal horn of the spinal cord. Quarterly Journal of Experimental Physiology: Translation and Integration, 67(2), pp.193-212. https://doi.org/10.1113/expphysiol.1982.sp002630

  • Ganapathy, M.K., Reddy, V. and Tadi, P. Neuroanatomy, Spinal Cord Morphology. [Updated 2021 Oct 30]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2022 Jan-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK545206/

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