Anatomy & Physiology Question #34


What two grooves extend the length of the spinal cord and partially divide it into right and left halves?


  1. Longitudinal fissure and posterior median sulcus
    • Rationale:
  2. Anterior median fissure and central sulcus
    • Rationale:
  3. Anterior median fissure and posterior median sulcus
    • Rationale:
  4. Central sulcus and longitudinal fissure
    • Rationale:



The correct answer is C. The spinal cord has fissure and sulci. The anterior median fissure is located centrally, and the anterior present at its base. The posterior median sulcus is present posteriorly, and the anterior nerve roots exit at the anterolateral sulcus on either right or left side. The other answer choices would not be the correct response to the question relating to the spinal cord groves.

Learning Outcomes

Test Taking Tip

Video Rationale