[Structure and topography of nucleus dorsalis in the spinal cord of horses].

The research study focuses on the structure and position of the nucleus dorsalis in the spinal cord of horses, noting its variation in cells and discontinuities over a considerable length.

Material Used

• The researchers used the spinal cords of two sexually mature horses for this study
• The preparations obtained from this material were stained using Nissl staining method and cresyl violet

Nucleus Dorsalis

• The nucleus dorsalis of the horse stretches from the 8th cervical neuromere to the 3rd lumbar neuromere in the spinal cord
• The cells forming this nucleus reside in the grey matter of the spinal cord, specifically in the dorsolateral region of the central canal
• The nucleus dorsalis comprises of large and medium-sized round and oval cells

Structure and Configuration of Nucleus Dorsalis

• A distinctive aspect of the nucleus dorsalis in the horse is the existence of many breaks within it over a substantial part of its length
• It’s only continuous over a short distance between the 17th thoracic neuromere (Th17) and 2/3 of the anterior lumbar neuromere 2 (L2)
• The nucleus dorsalis varies notably in terms of the cell count that forms it in the individual neuromeres of the spinal cord
• The best developed segment of the nucleus dorsalis in the horse is between Th17 and L2