from The Century Dictionary and Cyclopedia

  • Situated in the midline of the back.


Sorry, no etymologies found.


  • The Posterior Median Fissure (fissura mediana posterior; dorsal or dorsomedian fissure) is a narrow groove; and exists only in the closed part of the medulla oblongata; it becomes gradually shallower from below upward, and finally ends about the middle of the medulla oblongata, where the central canal expands into the cavity of the fourth ventricle.

    IX. Neurology. 4a. The Hind-brain or Rhombencephalon


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